FiiO M21 adopts an all-aluminum alloy body, AG frosted glass back cover, 4.7-inch small screen with built-in oleophobic layer, equipped with a new octa-core Snapdragon 680 chip, 4+64GB storage, Android 13 system, 4 CS43198 matrix DACs, which can provide 950mW (32Ω) thrust, support fully balanced level 2 amplification, and support L0 Dual output, low jitter coaxial output.
Design & Build
Body: Full aluminum alloy chassis for durability and premium feel
Back Cover: AG matte glass, fingerprint-resistant with a sleek look
Display: Compact 4.7-inch screen, perfect for one-handed use
Protection: Built-in oleophobic coating for smoother touch experience
Core Hardware
Processor: Qualcomm Snapdragon 680 octa-core, ensures smooth performance
Memory & Storage: 4GB RAM + 64GB ROM, enough for most usage scenarios
Operating System: Android 13, compatible with major streaming and music apps
Audio Performance
DAC Chips: 4 x Cirrus Logic CS43198 in a matrix setup, delivering pure, detailed sound
Output Power: Up to 950mW @ 32Ω, capable of driving most headphones with ease
Amplification: Fully balanced dual-stage amplification for lower noise and higher dynamics
Output Options:
L0 dual output: Supports both headphone and line-out connectivity
Low-jitter coaxial digital output: Delivers accurate digital audio signals
Specifcations
- A Brand-New Processor That Surpasses Competing Products — Qualcomm Snapdragon 680 Built on a 6nm process, it delivers superior performance and enhanced power efficiency. With 4GB+64GB storage and Android 13, it ensures smooth and seamless operation for all major music apps.
- Patented Desktop Mode with 950mW High Power Output: When Desktop Mode is activated, the M21 operates entirely on external power, with the built-in battery neither charging nor discharging—effectively extending battery lifespan.
- Quad CS43198 Matrix DACs, Fully Balanced 2-Stage Amplification: Featuring a 4-channel, 8-path fully differential output design, it unleashes its full potential with exceptional dynamic range and high noise immunity. The headphone amp adopts a 2-stage circuit design—the first stage handles voltage amplification while the second stage boosts current—ensuring pristine sound quality and rich detail.
- Versatile Ports, High-Performance Output: Supports dual 3.5mm + 4.4mm headphone/LO outputs, equipped with independent line amplification circuits. Also supports SPDIF and USB Audio output, with SPDIF performance rivaling professional digital transports—reducing jitter by 70%.