Previously the first 2 X5 DAPs used a Texas Instruments PCM1792A DAC chip and a JZ4760B processor with dual crystal oscillator SA2000 chips. The resulting tonal signature was largely neutral though the old X5 gen 1 suffered a bit from top end harshness corrected in the 2nd gen with improved opamp buffers. Decoding was competent at DSD128 at 24/192k max output. Also, both the processor and DAC were operating behind a fairly limited OS that has been FiiO’s stock in trade for 2-3 years and not capable of running Android which is where FiiO was edging with the X7.

Dual Channel

The FiiO X5iii now utilizes a dual-channel AKM AK4490EN DAC implementation which is a big change up from the older single TI chip implementation on previous DAPs. It still tops out at DSD128 for native decoding but the sampling rate is now increased to 384kHz/32bit as well as the fact its dual crystal oscillators have split duties on the typical sampling range decoding points from 44.1k up to 384k.

The Cost Equation

The AK4490EN has been around for a while and whilst it is pretty cheap to buy, even more so in bulk. Engineers love working with it for filtering and implementation, much more so than Sabre actually even though the ES range offers more detail the AK4490EN. Yet have rarely heard a bad AK4490 implementation whereas I have heard plenty of harsh sounding ES offerings. You can expect EQ flexibility and a very musical sound.

Also, Sabre has started rolling out their new ES9028 and ES9038 chip family which I believe will be at the heart of FiiO’s incoming X7ii flagship releases in the next 18 months and these chips cost a lot more than the AK4990EN as well as making the ES9018 rather old school. If you are trying to hit a mid-fi price point with the X5iii then it does make sense for them to use the AK4990EN.


To support Android 5.1 fully FiiO has upgraded the older JZ4760B processor to a quad-core ARM Cortex-A9 clocked up to 1.4 GHz frequency (Rockchip RK3188).  This is the same processor now as the X7. The Rockchip RK3188 is a fast ARM SoC primarily designed for tablets so a smaller touchscreen DAP such as the X5iii will present no GUI or 3rd party app issues. Though it has been out since as early as 2014 benchmarks put this chipset around the 14,000- to 18,000-point mark in AnTuTu and slightly superior to the well respected Tegra 3.


New Chips

It is all change again for amping duties. FiiO retains the TI connection with two OPA1642 chips for the low pass filter and dual customized OPA426 for direct amplification inside the X5iii. The OPA1642 chips excel in low noise and minimal distortion with rated figures of up to THD+N (0.00005%) as well as being fairly light on power usage.


The statement that the OPA426 is customized is an interesting one since data on this opamp chip is a lot harder to source and interpret and it is not clear what level of customization FiiO have done on the amp. One would assume that given its max output rating of ≥480 mW(16Ω / THD+N<1%) and output impedance is lower than 1Ω it is a pretty good bet that the level of customization was focused on noise levels to make the X5iii as efficient as possible with sensitive IEMs whilst delivering decent power to headphones.

Certainly, the SNR of the X5iii amp is pretty good at ≥115 dB (A-weighted) and matches that of the A5 but slightly lower than the claimed rating of >120dB of the PB3 from iBasso. For a fixed amp module on a mid-fi DAP though the numbers are good.


Finally, aptX is on the menu at FiiO with the X5iii capable of delivering BT 4.0 aptX via a Qualcomm supplied BT module. Accessing BT can be done either through the FiiO Pure Player playback screen, any third party app that uses it and their own control sets as well as the standard settings menu in Android 5.1 for connecting to remote BT devices such as headphones and speakers.

The X5iii is also the first X5 gen to offer WiFi which is a standard feature of Android and first seen on the X7 (KitKat 4.4) in 2015. This will give Spotify and TIDAL users no end of joy as well as HibyMusic fans like myself. DLNA is also a new option on the X5 for those who enjoy home networked music libraries. Cloud options are increasingly powerful sellers in today’s market and to get the most of the options on Android 5.1 you really do need WiFi.

It also means FiiO can now deliver updates wirelessly to the X5ii with OTA firmware which is vastly more convenient than the old manual download and transfer update of the previous generations.



The X5ii see FiiO launch their most advanced software platform yet for their DAP X series, even more so than the X7 flagship which ran Android 4.4. Android 5.1, or Lollipop, is cleaner, faster and more “connected” than the older 4.4 with better app support.

FiiO has gone on record as stating that Android 5.1 has also allowed it to bypass 3rd party apps hijacking sample rate conversion that arose on 4.4’s implementation on the X7 with an altogether more stable and longer running 5.1 platform. True enough, on Smartphones, we are on Android 7 but there are few, if any DAPs going beyond 5.1 in today’s market which means the X5iii, as a DAP, is bang up to date.

Boot Modes

As it was on the X7 so also will you get two bootable modes on the X5iii. The first is the vanilla Android 5.1 experience whereby you can access music options via apps and the Pure Music from FiiO is but one app choice. I am glad FiiO have gone against skinning their version of Lollipop with bloatware, it does look very clean despite it being deeply customized for audio playback.

The second choice is FiiO’s Pure Music Mode which is basically the app and nothing else. All other non-essential resources are shut down to allow the DAC and processor to focus on delivering audio. You can of course still turn on wifi and BT but you will not be able to access anything else beyond that and the settings menu. You can switch back to Android 5.1 via the drop down menu on any screen and choose Android mode.


As of the time of writing this review, FiiO has released v1.1.1 of their latest firmware which is their first update to the official international firmware v1.1.0. Firmware v1.0 was the firmware the X5iii launched in Dec 2016 but primarily for the Chinese market. If your simplified Chinese is up to par you may have tried a few from their Chinese language version of the website and some of these fixes were largely positive but it is really V1.1.0 and v1.1.1 that is the full package as of today and the ones you should start with.


Of course, since the X5iii is now wireless you can elect to receive your update OTA for a seamless upgrade. If you choose to do it in manual mode the experience is much like the X7 manual mode. You simply download the zip file, transfer to the root of a memory card then boot and select the technical support app on the Android 5.1 home screen. from there you can start the upgrade process which should take 1-2 mins with a restart somewhere in between.


Pure Player Options

Legacy options

Whilst technically an app among many the Pure Player is really where you will find most of the legacy features from the previous generations of X DAPs. Those familiar with the X5ii will get to grips right away with the small cog wheel settings bar in the top right-hand corner of the app home screen.

Home Screen

Default Options

The bootup home screen is customizable through the setting menu on the top left of the screen or by swiping left from the home screen. The default settings include your playlists menu, the local media library access menu and the DLNA configuration menu and server access.

List Options

Below you have 3 options and those 3 will largely depend on what you have ticked in the “personalize display” options in the app general settings. The standard is recently played, most played and recently added.

Search and Quick Play

On the top right you have a search button which allows you to quick search your media library and a small musical note which will take you immediately to the playback screen and play the last song displayed at the top of the home page screen.

Playback Settings

One click and you are presented with what I could best describe as a synopsis of what the X5 and X5ii were all about in one neat column of clickable adjustments. The first section is a condensed form of the general settings including library scanning (manual and auto) as well as an opportunity to personalize the home screen display in terms of content you want to see from previous playing sessions such as playlists, most played or recently added tracks to your media collection.

One thing to note is that unlike the X5ii this is an app specific scanning exercise so it will only create a media library for the Pure Music App. If you boot in Pure Music mode however it is the only app you can access and it will start to feel a little more like the X5ii experience in terms of available options and a holistic media scanning experience.

Legacy Options

The second section is the old Playback settings from the X5ii series with one or two very interesting additional options. You have previous features such as in-line remote, gapless playback, gain, and channel balance as well as the ability to customize your volume settings, theme and max volume limits. Right at the bottom though you have one last option and personally I think this option should be right at the top because it is fascinating to use. It is called VIPER Effect.

Screensaver Playback

For those that updated a few days ago to FW V1.1.1 you now have a nifty new feature whereby album art is now displayed in lockscreen mode as well as giving you full playback control without having to unlock the X5iii screen. If you have good album art tagging in your files it should work without a hiccup and certainly with over 50 files tested I have yet to have a screensaver artwork failure.

The playback controls include play, pause, forward, backwards and add to favorites. At the top of the screen you will see the Title and artist of the track. You can adjust this setting either on or off in FiiO Music->Settings->Lockscreen album art which is a simple on or off slider button.

VIPER Effect

VIPER’ Effect is an audio enhancing software founded by a chap called Euphy Wong around 4-5 years ago primarily as a desktop compilation then finally as an app, particularly for Android back in 2013. In its shortest form, you can best describe VIPER as being in a similar vein to the Cowon BBE system with a series of very interesting sound effects presets.

You simply click one and the VIPER module takes over and transforms the sound according to the description of the preset, for example. VIPER Clarity, VIPER Bass, and TUBE sound. Even going so far as to list the actual tube variant, 6N1J which is fantastic attention to detail. Heck, there is even one to reduce stress and retain auditory health through a system protection filter. In total there are 15 settings available to you in the VIPER Effect Pure Music app settings but do note that to activate them you must have a WiFi connection active.


Multiple EQ

There are a number of areas in which you can fiddle with the sound. You can EQ via any 3rd party apps if they have a built in EQ function. You can also EQ within Pure Music Mode and the Pure Music app using either the customizable EQ option in playback settings or you can introduce the very cool VIPER effect options also found in the playback options. Finally, you can introduce a very subtle form of sound enhancements via the AK4490EN filter controls which have been a feature of quite a lot of sources who use the AKM chip.


The Pure Music mode EQ is a 10 band equalizer covering a fairly broad range from around 30Hz to 16k with a 6dB + or – in either direction in terms of dedicated band boosting. There is also the option to create custom presets or pick one of FiiO’s pre-existing presets including pop, rock, dance, blues, metal, vocals, classical and jazz. Although I am not a fan of most DAP EQ options the EQ is fairly accurate and in combination with some of the VIPER effects can change up the sound quite a bit. Worth investigating if the stock sound is not quite what you want for certain genres.

General Settings

As with most Android DAPs, there are a set of general settings governing the entire ecology of apps both music and otherwise and the X5iii is no different in that respect.

Notifications Bar

Dragging down the notifications bar will give you a limited choice of settings much like what you see in smartphones but with one or two options specific to the X5iii core functionality. these include the boot mode, whether Android or Pure Music Player, a line out or coaxial out option, gain controls, filter settings, storage and power off timer. At the very top, you also have your WiFi and BT aptX on/off buttons.

General Settings Options

In the top right-hand corner of the notifications drop down area you can access the DAP general settings with the small cog wheel icon. Here you can setup your WiFi and BT connections and adjust your macro audio settings for the entire DAP such as the low-pass filter mode, multi-function output, gain and channel balance. You can also adjust your lock mode for the screensaver, save some battery power with the display settings and power off timers as well as check on your storage capacity, battery life, app usage and fiddle with general security settings.

Battery Usage Feature

The battery usage control is particularly useful as it tracks how many hours you have left before having charge again as well as displaying a neat little graph showing the peaks and troughs of your usage pattern over the course of the day and what apps, in particular, are hogging all your battery juice.

In idle mode, it is nearly always the screen but when an app is in use you will start to see that jump to the top of the list. You can also turn on a battery saver option in the settings menu of the battery app to improve battery performance which basically kills all redundant processes such as location services and email messaging if you have it set to push sync.

Running Apps

Also be aware that Android does support a limited level of multitasking so it is always best to check how many apps you have open by clicking on the square icon at the bottom of the screen which brings up a drawer of all open apps. You simply close them swiping right one by one until none are left showing on the screen. Again smartphone Android users will be very familiar with this feature and certainly, I find it more useful than loading any ‘auto kill app’ to do it for you.

Technical Support

Those coming from the X7 will be familiar with FiiO’s technical support app. It is quite a useful little feature which helps you get up and running with the X5iii as well as manually upgrade the firmware. You have quick tap options for contacting FiiO, their own FiiO forum, their official homepage and a link to Head-fi’s FiiO section. You can also familiarize yourself with the ins and outs of the X5iii with their digital quick start manual.


Boot up and Power Down

Sadly, boot times with Lollipop are much longer than the X7 KitKat Edition. I am not terribly surprised having used a Lollipop loaded Sony Xperia smartphone for a few years it does take a while. In total it will take approximately 45 seconds for a full boot into either Android mode or Pure Player mode which is almost 20 – 25 seconds longer than the X7 and around 38 seconds longer than the older X5ii. I would love it if FiiO could get this one down to sub 30 seconds but I am not sure that is something they can fully control. It does seem to be a fact of life with Android 5.1.

The nearly instant off on the old gen X DAPs is also gone with 5.1 taking around 5-6 seconds to power down (possibly more given the screen dims and another few seconds before the blue LED light on the power button turns off).

App Loading

Open Platform

App loading is pretty snappy on the X5iii. Stock apps are up and running in a second or less. 3rd party apps such as HibyMusic install just fine and open and scan accurately. Do bear in mind the more apps you will load on the X5iii the great chance for there to be a substantial reduction in battery life.


I do notice some lag however in Pure Music mode and the Pure Music app, particularly when it comes to pause and then play operation in the latest FW V1.1.1. If there is a lengthy pause where the screensaver takes over say after 2 mins, waking up the player and hitting play from its previous pause state now has a delay in audible signal whilst playing by up to 3 seconds. After discussing with FiiO literally today on the lag the good news is they managed to replicate the issue in their labs so expect a fix in the next firmware.

FiiO Market

FiiO does helpfully provide the “FiiO Market” which is a spin on the Google Market and it is more of a suggestive list of quick access and easy to download ‘approved’ apps that they recommend to X5iii users based on their own testing experience. It is not a particularly long list but it does cover pretty much the essential audio apps from streaming to media management and a small smattering of utilities for wifi and keyboard customization.

Google Play

If you want the full range of apps to load up on the X5iii then FiiO does allow this on the X5iii by simply tapping on the apps drawer and signing into the Play Store app. Personally, I have no interest in anything outside of Spotify, Onkyo and HibyMusic apps but with Android 5.1 there is a good chance you can grab the latest edition of whatever your fav is there and yes, Facebook will run just fine on the X5iii.

Media Management (Pure Music Mode)

There are a number of ways to manage your media on the X5iii and when I say media yes, you can also store and playback video files with 3rd Party video apps though watch for resolutions in those video files as it will not handle 4k or other very hi-res files. Most 3rd party apps will bring their own flavor of media scanning and management but if you boot into Pure Music mode you will only have two available to you; the tagged media library and internal storage search (by folder and file).

Scanning Accuracy

Unlike the X1ii the X5iii scanning time is quick and efficient inside 2 apps tested, HibyMusic and Pure Music. That being said v1.0 was not so accurate picking up only 50% of my tracks and not all tags. Hiby Music got it right first time. Roll on V1.1 of Pure Music and it is now just as accurate and fast as Hiby Music. I was able to load something in the region of 1500 tracks in around 30 seconds (lossless FLAC).

It will also read DSF files but as per most other platforms, DFF tagging is not possible so your DFF files will simply come up as unknown. You can, of course, opt to just simply drill down using the internal storage option and access the files manually if you have a good file structure in place.



Drill Down Defaults

In our initial published review we felt that the media management tool lacked major drill down features in Pure Music Mode and the Pure Music app from the headlines categories – Songs, Artist, Album, Genre, and Storage. If you happen to have 10 albums of the same artist there is no album organization in the artist category by default. You are simply hit with a wall of songs in numerical or alphabetical order. You need to click on a small icon in the top right (list plus note icon) to create organisation of songs into albums.

The same principle applies for Genre whereby its simply Genre>Songs. What the app needs by default is for this option to be switched on to create a friendlier UI logic. Icons are not always universally understood by users.

Firmware Refinement?

One can only hope that subsequent FW revisions will correct that and we get a better drill down media management experience using tags because otherwise, it is relatively quick and easy to browse through the media lists using the touchscreen and certainly a lot easier than the old click wheel solution of previous X DAP gens.

Media Actions

One thing to note is swiping left or right on a song title will present you with a nice little list of options colored in green (left) or red (right). The green offers track information, BT playback, add to playlists and favorites. Red brings up the trash can to the right whereby you can manually delete the file from your library. A small triple dot bubble at the bottom right-hand corner of the media lists brings up all of those options in one handy space at the bottom of the screen for quick selection and action.

Page 2: Sound Impressions & Comparisons

The X5 3rd Gen By FiiO
3.3 (66.25%) 16 vote[s]

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84 Responses

  1. Bryan Beasleigh

    Has anyone explored the X5’s ability to compensate for hearing impairment. My left ear is pretty much flat yet I can still enjoy good music. Highly compressed crap gives me a headache. From what I’ve seen the hearing aid people don’t understand much except profits and have a different idea of decent in ear modules. They insist on calling a driver a receiver.

  2. Daniel Bykhovsky

    Will the Hifiman 400i’s be full-sounding with the these? The impedance on them is 35 ohms at 93 db sensitivity.

  3. RS

    How will the Beyer dt990 pro 250 ohm will perform with the x5iii? Will it need a portable amp? Suggest a good portable amp for it mate.

  4. headfonics

    Mark, I think you will be ok. I was reviewing the W80 recently and it seemed fairly quiet. I do have to note the noise level on the X5iii is really at a level of “oh i can hear it” right away with the likes of the Andromeda. SE846, VE6 etc. Very sensitive stuff. I didn’t find that with the W80.

  5. Mark Reed

    Hi Marcus.
    I have Westone W40 which are rated at 30-32 ohm, how would they fair noise wise? is it only 20 and below or over 20ish is fine?


  6. Chris Maddox

    Thanks for your review Marcus. If I respectfully may please, I really need help with my following inquiry…..

    I realize that you can’t extract various components that are non-existent from a song in a compressed mp3 file/format, since it’s not a ‘lossless’ file. And even though I see this X5 III as more suited for lossless files to truly get the fully enhanced effect, but….., can it at least improve the trebles and mid-ranges of a compressed mp3 file to a certain degree?

    A lot of my 256kbps iTunes songs are quite dull and muffled, thus wanting an equalizer that his X5 III has (which my iPod Classic does not have) to enhance the trebles and mid-ranges.

    Or, is it the equivalent of trying to suck blood from a stone and not worth the investment, since the compressed mp3 songs will have lost a lot of the original components of a lossless file? Therefore this device cannot improve upon something that is no longer there in the song. ???

    I would really appreciate an honest answer where I don’t feel like I’m being persuaded to buy it through an Amazon affiliate link. I’m not at all implying you would be ‘dishonest’, as that’s what I’m saying whatsoever.
    But other reviewers I could tell, were hyping up the device in order to get a sale, that’s all.

    Therefore, thank you for your kind understanding. :)

    I would be extremely grateful for your kind thoughts Sir.

    Thank you for your time. :)

    • headfonics

      OK so first off we have no Amazon affiliation program so we do not make a dime from our recommendations :)

      Second, the X5iii has the awesome Viper Audio Effects. Now some of that program is free, some of it is not. The dynamic range enhancement module though is free and it’s a game changer for crappy files. Note it will not increase resolution or detail, just give it more pop and make it sound less dull.

      Third, I would opt for a clean or neutral sounding IEM or something with a bit of clarity at least to maximize what you are listening to.

      • Chris Maddox

        Thank you kindly indeed for taking the time to reply Marcus – I’m most grateful! I fully understand what you’re stating, and I have noted it and will proceed accordingly. Thank you also for the Amazon clarification, and please know that I was never intending to imply you guys do reviews for profit. It’s just that i have come across some people who will try to push the sale so to speak, regardless of what they say is true or not.
        I believe your statements wholeheartedly. Thank you again for your consideration. :)

  7. Richard Arulpooranam

    I have installed the Yamaha AV Controller App onto my X5iii however for some reason I am not able to access the music library saved to hard drive of the device. The app recognizes that the Fiio is connected but the music library is not accessible. Solution?

    • headfonics

      Is your Yamaha connected to your wifi network and working under any sort of DLNA protocol?/ If so I would use a DLNA software and try an alternative. Not being in front of your system or familiar with Yamaha’s app would mean I am purely guessing.

      • Richard Arulpooranam

        Thank you, your solution worked. BubbleUPnp did the trick. Now I just gotta figure out why the Fiio won’t play m4a through BubbleUPnp but it plays it on its own and the Yamaha receiver plays the format on its own as well. Very strange.

  8. mark

    how dose the x5iii stack up against the lg v20 far as sound wise?

  9. Michael092468

    Has anyone connected the Fiio to Android Auto? Curious if it would work with it.

  10. Pritch

    I will probably be purchasing the X5iii this week, and am looking for headphone suggestions. Can you suggest some reasonably-priced in-ear headphones that pair well with the X5iii? And great review also. Thanks.

    • headfonics

      Well difficult to answer as we all have our own listening preferences but nothing overly sensitive to show up the higher than normal noise floor on the X5iii. Personally, I would go with the Noble Audio Savanna as an all-rounder and it’s under $500 or the Earsonics ES3 for less than $500 also.

  11. Tomas Cornaglia

    wht would you recommend me for buying: the chord mojo or the fiio x5 3rd gen?. Its the first high ress product i would own.. Thank you very much!!

    • headfonics

      They are different types of products. One is a DAP and the other is a DAC/Amp, if anything they could be used together. the X5iii as a transport and the Mojo as the DAC/Amp.

      Now without knowing your usage requirement or current setup, my recommendation is the Mojo for DAC and amp duties if you are connecting to a PC or smartphone. If you want an all in one player that holds and plays music file with wifi etc then the X5iii.

      • Tomas Cornaglia

        thanks! im using my smartphone, and i want to get better sound quality, thats why i dont know what to get. I mean, a dac/amp (mojo) for the smartphone or the DAP (fiio).
        its better the sound output of a smartphone (s7 edge) with the mojo or a fiio x5 3rd gen?
        i wish i could buy both things instead of one, but its a lot of money haha.

      • headfonics

        I think it has to be Mojo then if you are happy to continue using your phone as a transport for your media files. I love the X5iii but the Mojo is a step up in audible quality.

  12. Michael Britton

    I’ve ordered a pair of Jupiter’s and I’m tending towards the purchase of this DAP, however the efficiency of the Jupiter’s is concerning me in regards to the hiss I might encounter. Should I not be concerned? I’m really hoping it will be a good pairing. Could you please give me advice on what I can do to reduce hiss with these headphones and the X5iii? -Would much much appreciate that.

    • headfonics

      I don’t think you should be overly concerned, it’s not high enough to be distracting it’s just not a completely black background. Best way to reduce hiss is to play some music :) You will not hear it then unless you are playing chamber music.

  13. thumperBF

    Viper4android, or Viper effects as it’s implemented in this DAP, is probably the single best thing everyone should have if using an Android based device. The audio tweaks are endless, almost making an EQ irrelevant. Although I prefer a dedicated DAP to using my Android (7.1.1) phone, I’m still amazed at the capabilities of Viper with my phone and no amp or DAC. The software itself has been taken and added upon by various developers, but the ARISE sound system is probably the best and latest iteration. Glad to see Fiio implementing it from the getgo! Might have just tipped the scales in favor of the X5 III instead of others I have been eyeing…

    • headfonics

      I think it’s vastly more impressive than the generic EQ app, one of the first times I am tempted to pay for DSP.

  14. Exh1l3d_0n3

    I’ve been following this DAP on Head-Fi, there are so many issues with the firmware that it seems the consumers are Beta testers at the moment. How does this compare to the Onkyo DP-X1 or AK70?

    • anc69

      Hi, I’m an happy Fiio X5 III owner since last month, and I’m a Head-Fi follower too. It’s true, there’re some issue in firmware as usual for all daps, but it seems to me that many ‘audiophile’ critics are really overstated … I had no crash, data loss or other big issue on the Fiio X5 III. Obviously I’d like that everything would be perfect, but if an album cover is missing on an ape file I can surely survive.I feel more a musicphile me than an audiophile, and Fiio sound is wonderfull for me. I don’t kwow AK70, but I’ve tried the Onkyo DP-X1 near X5, Iand I choosed the second one. Onkyo is a very good player, but Fiio value for price and build quality are higher; and mostly the sound: for my hears Fiio musicality wins, each sound plan is perfectly detailed but in a very balanced syntesis. In other words the Fiio does not exhibit frozen details, but plays music. This is my opinion and my taste, of course; nevertheless someone seems interested in asserting himself as a technical guru more than in music. Finally, Fiio customer care is very good: I have answers from support in a day, and firmware upadates are frequent.

  15. econaut

    “Will subsequent firmware updates tackle the noise levels? One can only hope so.”

    Is it even possible to fix this by software? Unfortunately, the X5iii and the Andromeda are on my shortlist…

    • headfonics

      If it is gain related it may be possible by lowering the gain levels through software but I am not 100% sure it is pure gain. I believe Cayin has gone some way to reducing the background noise on their i5 through software. Mind you the Andromeda hiss is not overwhelming, only when it’s quiet, I actually use this pairing a lot.

      • econaut

        I will demo the X5iii in a few days with my Dunu DN-1000 (10 Ohm / 98 dB). Andromeda is 12.8 Ohms / 115 dB. I hope I will get an impression of the hiss then.

        Alternatively, the Sony NW-WM1A looks promising. A review would be highly appreciated ;)

      • headfonics

        I would love to review the WM1A but sadly Sony do not give out review units. Maybe I will get lucky later in the year.

  16. Pritch

    Is the X5 3rd Gen compatible with a Mac? Do you just drag and drop to add music to the player?

  17. Michael Welshy Lloyd

    Just ordered one. Had the x1, x3ii, x5ii, and x7 (and an AK jr). All of them had pretty significant shortcomings. Ultimately I want something I can use with tidal, which is why the x7 was the one that lasted the longest. But it wasn’t very pocket friendly and I ended up back on my phone.

    this looks like it could be the one. Not exactly svelte, but probably one that can actually fit in your pocket while walking around.

    I’ve used it as an excuse to upgrade my cans. Have some Oppo PM-3s on the way. I hope they pair well.

    • headfonics

      Awesome, let us know how you got on when your X5 3rd gen arrives :)

  18. emil

    So would you recommend this for a guy who only wants to use it for music? MY ipod finally died and I have been thinking about pulling the trigger on the 2nd gen x5 solely for the space capabilities of the sd cards and the similarities with the ipod. I have TONS of music but I don’t want to shell out the money for something that cannot last. My ipod served me well and took some bumps and bruises. I want something that is going to last and sound great that isnt super complicated to use on the fly wither

  19. antonio

    Thanks for your review, it’s very clear and useful: now I’m waiting my new Fiio x5 iii shipping!…
    But I’ve a trouble about headphone pairing. I used for year my old Fiio x3 with Beyerdynamic DT 880 (250 ohm), and I was happy. Now I read somewhere that X5 iii + Beyer DT 880 250 is not a good choice. Does anybody have some experience about? I’d like to avoid an external amp… Which headphone is good for this beautiful product for you? Thanks!

    • headfonics

      The X5 3rd Gen has an edge in terms of functionality and resolution

  20. Raul

    How good is this for rock, classic rock and 80s metal. Does it have the punch to sound amazing paired with good earbuds for the style?

    • headfonics

      I think pure aggression is the Cayin I5 but I like my LA guns and love hate with the x5iii :)

  21. scottmdj

    The Cayin i5 also plays DSD DST files, unlike the Fiio at the moment. So now does the brand new iBasso–can you get your hands on a review of that unit?

    • headfonics

      We will indeed have a review of the DX200 out next month and its a great DAP but bear in mind it is over twice the price of the X5iii.

  22. Punit Shetty

    Great Review. Really well written, especially the comparison with other DAP’s.

    • headfonics

      Thanks Punit, it’s a very involving DAP, quite a lot of features. Glad you are enjoying your FiiO DAPs

  23. pyktures

    Great review including a comparison with two of the hottest dap (cayin i5 and opus 1). I’ve been looking to find a chunkier dap than the plenue D for a more passionate listening on the go and this one seems to tick a lot of boxes.

    What I’m mostly worried about is the 1gb of ram. Being a long time android user, I know having too little ram can hang the system in the long run. Would you think it happens on DAPs?

    I also don’t know if it’s in the same price bracket as the ibasso dx200 as this one comes with 2gb of ram and dual dacs.

    I’d probably make my decision by the holidays as I still very much enjoy the cowon, but knowing where the x5iii sits withing the gearscape of 2017 would be useful.


    • headfonics

      Well first up the X5iii is $399 to the DX200 $900 so I wouldn’t put either of them in the same bracket. Mind you the Dx200 has 4k video which is interesting.

      As for 1Gb yes its slim and I have no clue what people will shove on their android platforms by way of apps and games etc so 1GB, if treated like a smartphone will be slim, 1GB if used as a DAP should be just fine.

      • scottmdj

        One of the reasons the iBasso is much more is the large 720p screen vs 800×400 one on the Fiio (akin to the pricing on the similarly configured Calyx M) and the more powerful amp. Looking forward to that review—but really not til April? :).

      • headfonics

        Vacation time, plus about 10 others ahead in the queue.

  24. Paulo Abreu

    Great review as always!

    X5 III looks great for the money but now its more clear for me its not an “upgrade” to my X7/AM3 using balanced output to my A&K Angie II IEM – a killer combo to my ears. Btw, I think you meant “… all sport a balanced connection…” under Balanced topic page 1


  25. Moleman_X

    The EQ limitation on the X3ii did not allow it to work with hi res or DSD files. Can you verify that EQ works on all file types in the native app? Thanks!

    • CENTER

      This really pisses me off too. I couldn’t find any info on any website that says that the x5 gen ii can’t use the EQ for hi res files above 48khz, beside a forum post by a moderator. This is unacceptable. Did you find any new info on this yet?

      • Moleman_X

        Oh, that’s what I was asking! Very much thinking of getting X5 iii but want to be able to EQ even DSD files. Thanks!

      • CENTER

        I don’t know about DSD files though. That’s streaming. Possibly ask YouTubers.

  26. don t

    This looks good, but I only paid $150.00 more for my onkyo dp x1 that has so much more.

    • headfonics

      Well for an extra $150 I would be wanting more :) I hear the Granbeat Onkyo project is looking very promising also.

      • don t

        Yes. I started out either the AKjr. It sounded great, but the interface was horrible, and the Bluetooth didn’t work. So I read & read. Every article pointed to the dp x1 as the player to get. It’s still the only player that will play mqa although I’m sure more will catch on soon.

        Dons galaxy S7 EDGE

      • headfonics

        Not a fan of the MQA business model but it’s a feature and maybe that’s where the $150 will come in. Mind you, the X7ii is around the corner also.

  27. Jeff Rogers

    Is there a “play queue” in the FIIO player app ? i.e. Add album to play queue, display the current contents of the play queue, etc…

    • headfonics

      You can create playlists on the go so simply load up the playlist and acts as a queue.

      • abu_jhd

        no you cant. please dont wrongly inform users!
        each song that u add to a playlist on the X5 requires that re-choose the playlist to pickup the newly added songs.
        for example:
        im playing specific album by Metallica.
        if i want to add another song – Sia – to my current “queue” i’ll add it to a playlist (self created) called queue1. in order for the player to include Sia in the playing session i’ll have to go again to playlist menu and re-choose queue1. then and only then the Sia song will be played along with Metallica.
        @Fiio , if you read this add “play next” and “add to queue” functionality ASAP.
        free players on Play like Pulsar has this feature. pick up ur game FIIO

      • headfonics

        Try the Hiby Music app, you can add songs on the go to a playlist then add the playlist to the category section and browse the playlist whilst still listening to the original song.

        Also with regard to the FiiO, I do not see how my statement contradicts your statement. You can create on the go playlists using the favorites option for both song and album and yes you have to navigate to the favorites section in order for the list to be activated but if you note in my comment I did state “load up the playlist”.

  28. Jeff Rogers

    Thanks for the review. But, I am floored by the following “browse” library limitation (Lack of Drill Down)

    ” If you happen to have 10 albums of the same artist there is no album organization in the artist category. You are simply hit with a wall of songs in numerical or alphabetical order.”

    This would need to be fixed before I would purchase this device.

    • Hoàng Bửu

      Agreed. Things will get troublesome if Fiio did not improve the artist category.

    • headfonics

      Yeah I saw on head-fi Relic says he gets albums under artist. All I can say is that all other apps and DAPs such as AK240, AK380, DX200 etc etc all show artist>album>song. I also have complete drill down on all pc software that reads my tags. I use MP3Tag and I tag for both artists and album artists the same as well as Genre, year, track number and song title. I am pretty anal about tagging. The files I am loading are FLAC.

      • anc69

        Hi, I’ve a question about Fiio X5 iii search feature. In the search result, if you click on an album or an artist the player start suddenly with first track of album (or artist). Is there a way to avoid this immediate start? I’d like to have something like a ‘drill-down’ option: in other words I’d like to see the track list of the selected album or artist, and then choose which track to play. Is it possible? Thanks

    • headfonics

      Hi Jeff

      We spoke with FiiO and there is a little icon in the top right that will organize the songs into albums though it is by no means immediately obvious that this button does that. We have updated the review to reflect that option and requested to FiiO that perhaps this option should be on by default as not everyone understands an icon without a label.

  29. Jesper Møller Rimestad

    Great review! For someone about to buy their first DAP would you recommend this over the Cayin I5, when the price differences here is only about 10$.

    • headfonics

      Is it really just $10 now? Last I checked it was $399 and $499 or $100 difference. If just $10 its a toss of a coin to be honest.

      • Fareeha Ateeq

        Hi I had the cayin i5 but I returned it ,the sound was a
        In your face no space at all .
        Regards Ateeq

      • scottmdj

        Cayin can do DST DSD ISO (mulitchannel encoding when both are on disc) which means it has a more powerful CPU (or better implemented)–as of now the X5 cannot. You can download legit files from sites such as–or in the case of myself, ALL my SACDs were converted to this format by a friend.

  30. 24bit

    You covered everything but the credit history and what toppings it prefers on pizza. Excellent review, mate!

    • headfonics

      Credit rating is fair to good and as far as I can tell no olives.


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