What it is
JM21 is a compact Android 13 digital audio player built around a Snapdragon 680 platform, dual CS43198 DACs and separate single-ended and balanced outputs.
Why the design matters
The slim phone-like body makes library, playback and settings visible on a 4.7-inch screen while keeping dedicated audio connections on a portable device.
Verified specification record
- Platform: Snapdragon 680; Android 13
- DAC and amplification: Dual CS43198 with dual SGM8262
- Display: 4.7 inches, 750 × 1334
- Dimensions: 120.7 × 68 × 13mm
- Weight: Approximately 156g
- Expandable storage: microSD up to 2TB
- Outputs: 3.5mm and 4.4mm
- Bluetooth: 5.0
- Variants: 3GB/32GB and 4GB/64GB records differ in battery
What to check before choosing
Confirm memory and battery variant, microSD compatibility, supported codecs/services, output mode, charger and regional firmware before relying on one set of runtime figures.
Configuration, included accessories, firmware, finish, stock, price, warranty and destination availability can change. Confirm the exact regional model and current documentation on the cited official page rather than inferring details from a family name or photograph.
What ChinoMuse has not verified
ChinoMuse has not physically handled, tested or reviewed the FiiO JM21. No statement here is a performance guarantee or first-hand experience claim. Manufacturer figures remain attributed to the maker and may depend on stated laboratory conditions, source equipment, installation, fit, environment or use.
Related record
See the FiiO brand profile for the design context and the two other representative products selected from the same range.
About this profile
This independent editorial profile was prepared from cited first-party public information and verified on 11 August 2026. Product identity, material language and published specifications were checked before publication; uncertain details are deliberately omitted.
