FiiO’s portable music player offers desktop-grade hi-res audio on the go

Fiio M15S lifestyle image
(Image credit: Fiio)

Having recently impressed us with its mid-range FiiO M11S portable digital audio player, Chinese audio firm FiiO is back with a decidedly high-end offering for its next on-the-go device.

The new M15S portable player comes packed with two desktop-grade ES9038PRO digital-to-analog converters, with individual DAC chips dedicated to the left and right stereo channels.

Each chip makes use of four D/A converters for what FiiO claims to be extremely high-quality decoding, with the device able to support playback of audio files up to 384kHz/DSD256. 

The new M15S also supports MQA, allowing listeners to directly stream Tidal Masters as well as MQA files stored locally, while further hi-res audio options come in the form of aptX HD Bluetooth, alongside LDAC and LHDC wireless codecs. 

There's onboard 2.4GHz/5GHz Wi-Fi allowing for support of Apple AirPlay and DLNA streaming, as well as compatibility with the increasingly popular multi-room music software platform Roon.

Fiio M15S lifestyle image

(Image credit: Fiio)

Weighing 345g, the device runs on Android 10, which allows for lossless access to Tidal, Qobuz and Apple Music, and it's powered by a Qualcomm Snapdragon 660 processor – the same CPU which features on FiiO's flagship M17 hi-res audio player.

Along with a regular 3.5mm headphone jack and both 2.5mm and 4.4mm balanced headphone outputs, there's a 5.5-inch multi-touch HD display with 64GB of onboard storage that can be expanded up to 2TB of extra storage via the microSD card slot.

The FiiO M15S is available now to order for $999 / £979 / AU$1,599 from FiiO's website, and set to ship later this month.

We can't wait to put it through its paces and see how it matches up to best MP3 players currently out there. Watch this space… 

Kevin Lynch

Kevin Lynch is a London-born, Dublin-based writer and journalist. The author of Steve Jobs: A Biographic Portrait, Kevin is a regular feature writer for a number of tech sites and the former Technology Editor for the Daily Mirror. He has also served as editor of GuinnessWorldRecords.com and has been a member of the judging panel for the BAFTA British Academy Video Game Awards. Alongside reviewing the latest AV gear, smartphones and computers, Kevin also specialises in music tech and can often be found putting the latest DAWs, MIDI controllers and guitar modellers through their paces. Born within the sound of Bow Bells, Kevin is also a lifelong West Ham fan for his troubles.

Read more
FiiO JM21 portable music player
This affordable new hi-res music player is the iPod replacement I've been waiting for
Shanling M8T Hi-Res Music Player laid out on wooden table, with black headphones nearby.
This portable Hi-Res Audio music player has a tube amp and Android, for a serious mix of the retro and modern
FiiO JM21 portable music player on a white surface
I tested the FiiO JM21 portable music player and it's hard to believe an entry-level digital audio device can sound so good for so little outlay
FiiO Snowsky Retro Nano
This funky Walkman-esque 'music player' doesn't look like a DAC, but it quacks like a DAC
Fiio FT7 headphones on a shelf, showing the grille
My favorite affordable audiophile brand just launch new flagship wired headphones – though these ones are pushing the 'affordable' part
FiiO M11S digital audio player
Best MP3 player 2025: top portable hi-res music players for any budget, all tested by our experts
Latest in Portable Media Players
FiiO JM21 portable music player on a white surface
I tested the FiiO JM21 portable music player and it's hard to believe an entry-level digital audio device can sound so good for so little outlay
Shanling M8T Hi-Res Music Player laid out on wooden table, with black headphones nearby.
This portable Hi-Res Audio music player has a tube amp and Android, for a serious mix of the retro and modern
We Are Rewind cassette player at CES 2025 on the show floor
This modern cassette player with Bluetooth (and matching retro wireless headphones) might've been my favorite music experience at CES 2025
FiiO M23 on a wooden table
FiiO M23 portable music player review: delicate yet muscular, assertive yet subtle, lavishly detailed and vaultingly dynamic
Activo P1 on a mustard-colored blanket
Activo P1 music player review: Astell & Kern audio quality for considerably less cash
Astell & Kern A&ultima SP3000T portable music player playing Chick Corea on a white surface
Astell & Kern A&ultima SP3000T portable music player review: another huge step forward in energetic, open sound
Latest in News
A man holds a smartphone iPhone screen showing various social media apps including YouTube, TikTok, Facebook, Threads, Instagram and X
Ofcom cracks down on UK tech firms, will issue sanctions for illegal content
Google Chromecast 2
Google rolls out another Chromecast bug fix for users who factory-reset their devices
A Starfew Valley theme on Wear OS
Someone made a Stardew Valley theme for Wear OS and it's perfect
PS5 Pro feature
New Playstation studio is helmed by veteran Call of Duty dev and has been 'working away in the shadows'
3d rendering of a submarine power cable on the seabed
Subsea internet cables can now ‘listen’ for sabotage using irregular pulses of light
Google Pixel 9 front and back
The Google Pixel 9a has gone up for sale and it’s not even out yet