








🎶 Slim, smart, and seriously powerful — your pocket’s new audiophile.
The FiiO JM21 is an ultra-thin, high-resolution digital audio player featuring dual CS43198 32-bit DACs and a fully balanced dual OPAMP design delivering up to 700mW per channel. Powered by an octa-core Snapdragon 680 chipset running Android 13, it offers smooth multitasking and supports various streaming apps. Its independent shielded power supply and proprietary DAPS system ensure pure, noise-free audio. Weighing only 156g with a 13mm slim profile, it provides up to 12.5 hours of continuous playback, making it the perfect blend of portability and premium sound for discerning listeners.












| ASIN | B0DRYJ9FCG |
| Best Sellers Rank | 36,895 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 254 in MP3 & Digital Audio Players |
| Guaranteed software updates until | unknown |
| Item model number | F30511 |
| Manufacturer | JadeAudio |
| Package Dimensions | 16.51 x 10.59 x 4.39 cm; 322 g |
J**D
Try it and see!!
Great little dap, cheapest one out there, great sound, all the whistles and bells included, wi-fi and Bluetooth work perfectly unlike on my A & K £700 machine. Maybe battery life could be improved but it’s ok. If you are used to using your phone for music you must try one of these!!
F**S
Love it
Great quality, easy to use especially in amdroid mode, nice clear screen, lightweight, keeps charge well, shame doesn't do android auto
D**.
Fantastic
Absolutely fantastic bit of kit
D**L
Good sound but fiddly interface ...
I have rated this device at 3 stars not in order to imply that it is mediocre but only that it does not fulfil my personal expectations for a DAP. A few years ago I owned and enjoyed a FiiO DAP and based on that experience I had high expectations of this device I terms of usability. Only some of which were met as I try to explain here. Press reviews of the JM21 are generally positive about the build quality and, of course, the sound which at this price point is very good indeed. It is a nicely produced device that feels good in the hand, has a solid, slightly weighty feel to it and two headphone outputs (although I don't have balanced 4.4 headphones so couldn't sample this aspect). In addition, a very nice, thoughtful production detail is that it arrives with a fitted, clear silicone backside case and fitted screen protector. What's not to like. But, while admiring almost everything about this device and, bottom line, the sound output is terrific, I found much to disappoint me in the user interface. This feels too complex, occasionally confusing, awkward to navigate, and generally seems over featured (for example I have no need for a VU meter). Too often I could not easily backup to the choice point I was at beforehand so got lost or arrived at a choice that was unexpected. For me, in regular use a good DAP should provide simple and reliable methods for locating tracks, albums, etc. and going on my experience with the early model FiiO that I once owned that is what I expected here. I have spent quite a few hours uploading files, trying out the various functions, editing metatags etc. to help with file organisation but I have come to the conclusion that the interface for managing music files is it weakest feature if, like me, you want good quality sound with a straightforward play-me-this-music-now interface. Other devices on the do this although the price point of the JM21 is a key, and important, selling feature. Also, this is a device based on Android so some of the features that you will find here look like more mainstream computing resources and some users may well find these useful (e.g. the ‘safe’ folder) and because it has WiFi internet updates are routinely notified. Having said all this I do not want to diminish the quality of this device. It is great and for the money you are getting a device that will play your music to a quality level that may cost at least a hundred pounds more (assuming you are using a high quality file format in the first place). It would certainly suite users who really want to drill into some of the subtleties of managing music files … and for whom a VU meter might be a useful tool! In other words this is a device that would please that school of users known as audiophiles, an audience that is FiiO’s main focus these days. Note: (i) I have no comment about battery life. It lasted quite well while I was using it. Some reviewers have reported that it does not last as long as specified, but of course there are many usage variables at play for battery usage. (ii) My comments are mainly based on the use of the Pure Music Mode. Android Mode also provides playback tools. (iii) Online help for the device (what we used to call a User Manual!) seems limited.
M**E
Absolutely in love: A streaming only user perspective
I was always interested in DAPs, but having since long transitioned to full streaming, DAPs seemed too expensive for me, so I was using Smartphone + USB DAC. I am a Tidal user for further context. I was hesitant towards purchasing a DAP given my use case, but now that I have finally decided to go for a Fiio JM21, and very happy with it, I would like to list the advantages of DAPs if you're a streaming user only as I find relatively lttle content from this perspective online. The JM21 at its price point, really makes the investment worthwhile and I believe more people with my use case should consider it. - Undistracted listening: this has to be the primary reason, when listening from the phone, doesn't matter how much I actively tried, just by handling it, it was to easy to get distracted by an email, a notification, etc. Sure ther are way to manage this with software, but having a physical device dedicated to the one activity makes it so much easier. - Memory Card: with most phones not allowing SD cards, I can now have a huge offline selection, that I can take anywhere with me, especially considering the next factor - Pocketable form factor: I can now take my music a lot more easily on the go and on runs, and I can listen to my favourite IEMs while running! - Car audio: this one depends on whether you have an AUX port, but for me that I have, there is an improvement in the audio quality. Also much easier to take the dinky JM21, plug it in and go than using the phone - Bluetooth codecs: getting into niche territory here, but for example I have a pair of Oneplus Buds 3 that use the LHDC codec, not available on my phone - More battery: as much as people complain on some reviews I am perfectly satisfied with the battery on my JM21, I can still listen to music even after a long day, much more important when cosidering that a USB DAC would occupy the charging port of your phone.
M**S
Great sound and build quality
Previously ordered a hiby and was bitterly disappointed with the sound quality and how small it was. This is the business it's great value, sounds superb, and my only real criticism is the internal memory could be better as most of my music library I now use on Spotify so am not able to store most of it. But apart from that I'm 100% happy
P**U
Good player but poor component quality
I bought this player a few monthes ago. Now it does not turn on. Show an empty battery and does not charge any more. I tried different chargers and cables.
N**O
Good sound
This is ok as a music player but can’t see the display in sunlight which is annoying. Took some time to work out how to use it but the sound is very good.
N**K
I have tried a few different Digital Audio Players before and the JM21 by far meets my needs comparatively. There are plenty of positives and a couple negatives more me. Over all, I highly recommend this device. Positives: 1. Size/Weight is pretty solid for transport being not too small or too big and on the lighter side. 2. Easy expandable storage with micro sd card up to 2tb 3. Sound quality and power are adequate and nice for the price point. 4. Android 13 so it's pretty snappy and there is no issue putting your music on the device 5. Great Bluetooth with solid range creating strong connections 5. WiFi for easy firmware updates and for streaming if you need such a thing Negatives: 1. The biggest negative is the battery life. I believe they state it will have approx 12 hours depending on use case. Which really isn't horrible and is mostly accurate but I recommend turning off wifi and Bluetooth when its not needed. Lowering the brightness all the things you would do with a smartphone to conserve power. On the other side of this it charges extremely fast and for my use case I'm never going to listen to 10-12 hours off of it continuously. 2. The buttons can be easily pressed within a pocket. Ive haven't had many issues with buttons pressing by themselves via movement often but more so when I go to grab the thing. Not a big deal but a tad bit annoying at times.
P**L
Bien construido. Me gusta mucho el android básico que trae, nada de cosas superfluas. Calidad de audio muy buena. Tiene tres modos de amplificación en salida de 3'5mm con lo que no se queda para nada corto en volumen. En las últimas actualizaciones incorpora un eq paramétrico ideal para darle a tus auriculares lo que le falta. Contento con la compra. El único pero es que de batería anda un poco justa. Un uso intensivo te de como mucho para dos días sin cargar.
P**M
DAPen var mer än jag förväntade mig. Först körde jag med bluetooth hörlurar och det kändes hyggligt ok. Något bättre än jag minns MP3 spelare från 15 plus år sedan. När jag köpte till ett par IEM (Fiio JH3) så insåg jag vilket kap DAPen var. Är väldigt nöjd med kvaliteten på ljudet. Väldigt klart och tydligt över hela frekvensbandet.
T**C
É um leitor MP3 realmente excelente. Friendly , muito intuitivo, muito bom em te-lo nas mãos. O modelo tem linhas modernas e é muito bem acabado. Por fim o som, maravilhoso, A bateria que alguns reclamam eu considero boa pela potencia do equipamento. Sabendo usar os recursos, de luminosidade, internet desligada quando não necessário como tambem bluetooth, ela dura seguramente de 9 a 10horas. Melhor que ele, dentro da faixa de preço dos 300 US$ só o M21, que tambem adquiri recentemente. Não se pode esquecer que para poder ter toda a experiência com o som é nescessário um bom fone de ouvido. Eu adquir um HEADPHONE KUBA DISC2 PRO, excelente . Resumindo, vale a pena comprar o FIIO JM21.
B**L
Sieht aus wie ein Smartphone, bedient sich eigentlich wie ein Smartphone, nur telefonieren geht nicht. Wozu dann also so einen DAP aus dem Bereich Einstieg, reicht da nicht auch das Smartphone ? Kommt darauf an ob man rein auf Bluetooth Kopfhörer setzt, eher streamt statt lokale Musikdateien und einiges mehr. Meine Gründe für den Kauf waren diese: Intergrierter HiRes tauglicher Verstärker mit 4,4mm symmetrischem Ausgang micro SD Slot bis 2Tb Android 13 mit Anpassungen für HiRes Audio Handliches Format und leicht. Geplante Nutzung ist für unterwegs, nicht für zu Hause. Schaut man sich an was es für DAP's zu kaufen gibt, gibt der Markt einiges her, man kann schnell sehr viel Geld in die Hand nehmen für einen Premium DAP. Die Frage ist nur ob man "Premium" als Normalbürger hören kann. Ich glaub das nicht wirklich, aber das ist rein subjektiv. Doch nun zum FIIO JM21, die ersten Schritte und dann die spannende Frage wie klingt das Ding. Geladen wird mit Standard USB-C, es wird kein Netzteil mitgeliefert, ich verwende ein vorhandenes Standard Ladegerät mit 2A. Der mit 2400 mAh dimensionierte Akku ist relativ schnell geladen, es ist empfehlenswert den Akku ein paarmal bis auf <10% Akku zu entladen, dann entfaltet sich erst die volle Kapazität. Mit dem WLAN verbinden und schon wurde mir das Upgrade der Firmware auf Version 1.06 angeboten. Man kann sich mit seinem Google Konto im Playstore anmelden, damit stehen dann sehr viele Apps zur Verfügung. An dieser Stelle eine kleine Warnung: Es handelt sich um einen Audio Player, man sollte vermeiden sich den Player mit unzähligen Apps vollzumüllen, stattdessen nur das laden was man wirklich benötigt. In meinem Fall habe ich mir die App Musicolet geladen, sagt mir eher zu wie die mitgelieferte FIIO App. Der interne Speicher ist mit 32Gb nicht wirklich groß bemessen, doch ausreichend um dort ein paar Lieder abzulegen und dann zu hören wie klingt der DAP denn. Als Speicherweiterung habe ich mich nur für 512Gb entschieden, obwohl 2Tb möglich sind. Doch eine mit 2Tb an Musik gefüllter Speicherkarte ist die Unübersichtlichkeit der Medienbiliothek, auch Playlisten helfen da nicht viel weiter Also zunächst ein paar Musiktitel, anhand derer ich den Klang prüfe, in den Speicher geladen. den IEM Hidizs MP145 am 4,4mm Ausgang angeschlossen und ein paar der Titel angespielt. Zum Vergleich die selben Titel auf meinem iPhone + DAC angespielt. Ganz ehrlich, einen Unterschied höre ich da nicht. Wieder die Frage nach dem "Warum ?" Am iPhone habe ich Kabelsalat, der DAC hängt mit seinem kurzen USC-C Kabel am USB-C Port des iPhones. Zu Hause kein Problem, unterwegs ist das unhandlich. Ausserdem ist Speicherplatz beim iPhone nicht erweiterbar, auch bei diversen Androiden fällt der Steckplatz für SD Speicher immer mehr weg. Ein anderer Grund ist die einfache Option HiRes Audio zu hören, durch das speziell angepasste Android auf dem FIIO findet kein Downsampling statt, in der Kopfzeile des DAP wird 44, 48, 96 oder 192kHz angezeigt. Wie bekommt man nun seine Musikstücke vom PC auf den Player ? Option #1 - via USB-C Kabel, optimalerweise an einem PC mit schnellen USB Ports Option #2 - via WLAN mit eine entsprechenden App z.B. der kostenlose Totalcommander mit WIFI Pluglin Option #3 für die Speicherkarte - ein schneller USB Reader. Für den internen Speicher nutze ich Option #1 mit dem Kabel, für die SD Karte dann doch lieber den USB Reader. Habe die Speicherkarte bisher mit rund 100Gb an Musikdateien gefüllt, sind ca. 3.500 Dateien. Dann der spannende Moment, wie schnell baut sich die Musikbiliothek auf. Habe die Zeit nicht wissenschaftlich gestoppt, es waren so in etwa 2min, fügt man später noch weitere Titel hinzu, geht die Aktualisierung viel schneller, passt soweit. Wie bedient sich der Player ? Einerseits auf die übliche Art via Bildschirm, der Snapdragon 680 hat genug Power für die absolut flüssige Bedienung. Dann gibt es noch die Hardwaretasten, auf der linken Seite der Ein/Aus und laut/leise, auf der rechten Seite Play/Stop und Titel vorwärts/rückwärts. Neben den kabelgebundenen IEM's habe ich auch Bluetooth Kopfhörer ausprobiert. Apple Airpods - man kann damit Musik hören, doch die verwende ich dann doch eher mit dem Smartphone Bose QuietComfort 45 - geht deutlich besser als mit den Airpods, doch nur AAC Codec Sony WH-1000XM1 - LDAC Codec - klanglich ähnlich wie die Bose Habe lediglich Bluetooth probiert, praktisch nutzen werde ich das eher nicht. Auch meinen kabelgebunden Beyerdynamic T5 werde ich eher selten mit dem DAP nutzen, ist kein Kopfhörer für unterwegs. Im Vorfeld hatte ich mir u.a. die DAP's von Hiby R4/R6 und den iBasso DX 180 angeschaut, dann doch den eher preiswerten FIIO JM21 erworben. Solide Technik, wobei der Dual Cirrus Logic CS43198 DAC nicht in der Oberliga spielt, aber ganz ehrlich - irgendwo muss man Preis/Leistung abwägen. Im Bereich HiFi kann man sehr viel Geld für minimal besseren Klang ausgeben
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