FiiO M21 DAP Portable Hi-Res Digital Audio Music Player Bluetooth 5.0 Dark Blue

The FiiO M21 is a portable hi-res lossless digital audio player running Android 13 on a Snapdragon 680, with four CS43198 DACs, fully balanced amplification and 3.5mm plus 4.4mm outputs. It is for listeners who want a compact, high-performance music player with Bluetooth and up to 15 hours of battery life. This is the Dark Blue version, part of FiiO's M-series DAP range.

This listing is the Dark Blue. The M21 is also available in Black.

Key specifications

• Processor and OS: eight-core 6nm Snapdragon 680, Android 13
• DACs: 4 x CS43198, fully balanced 2-stage amplification
• Outputs: 3.5mm + 4.4mm headphone/line out, low-jitter coaxial output
• Screen: 4.7-inch compact HD
• Bluetooth: 5.0 (SBC, AAC, aptX, aptX HD, LDAC, LHDC)
• Storage: 64GB built-in, expandable via microSD up to 2TB
• Battery: 4000mAh, up to 15 hours, 20W PD fast charging
• Signal to noise ratio: 126dB or more (A-weighted)
• Dual Type-C ports, desktop/portable dual power supply modes
• Size and weight: 68 x 121 x 17mm, 193g

FiiO M21 Digital Audio Player

The M21 brings flagship lineage to FiiO's entry-level class, combining a compact 4.7-inch HD screen with a significant step forward in performance.

• Eight-core 6nm Snapdragon 680
• Android 13
• 4 x CS43198 Matrix DACs
• Fully balanced 2-stage amplification
• Dual Type-C ports
• Low-jitter coaxial output
• Desktop/portable dual power supply modes
• 4.7-inch compact HD screen
• 3.5mm + 4.4mm headphone/line out dual output
• Bluetooth 5.0 (SBC, AAC, aptX, aptX HD, LDAC, LHDC)
• 64GB built-in storage, expandable via microSD up to 2TB

Flagship SoC

The Qualcomm Snapdragon 680 delivers a smooth Android 13 experience while keeping power consumption low.

4 x CS43198 DACs

Four DAC chips enable an eight-channel fully differential output design, delivering strong dynamics and high anti-interference capability. The headphone amplifier uses a two-stage circuit: the first stage handles voltage amplification, the second handles current expansion — producing purer sound with rich detail.

Patented Desktop Mode: Battery Protection

Desktop mode appears on an entry-level FiiO player for the first time. When enabled, the M21 runs entirely from an external power supply. The built-in battery is neither charged nor discharged, so you can use the player on your desk without degrading battery health.

True Quality, Inside and Out

The fully aluminium alloy body with AG frosted glass back offers a refined texture and comfortable grip. An oleophobic screen coating reduces fingerprints and smudges for smoother touch operation.

15h Long Battery Life

The 4000mAh high-voltage battery provides up to 15 hours of playback — enough for long commutes or travel. 20W PD fast charging means quick top-ups even during short breaks.