Name: FiiO M21
Brand: FiiO
SKU: B0F8HVKTB9
Price: 329.99 USD
Availability: InStock
Rating: 4.3 (264 reviews)

Expert Review Analysis

The FiiO M21 is a compact Android‑based portable high‑resolution audio player featuring a Snapdragon 680 processor, four CS43198 DACs, and up to 950 mW balanced output. It offers a 4.7‑inch HD LCD, 15 hours of battery life, and extensive connectivity options at an entry‑level price.

✓ Best for: Budget‑conscious audiophiles who need desktop‑level power for demanding headphones, want Android streaming apps (Tidal, Spotify) on the go, and value expandable storage for large hi‑res libraries. Ideal for daily pocket listening, desktop hybrid setups with external power, and Bluetooth LDAC wireless playback.✗ Not ideal for: Listeners who require active noise cancellation, extensive third‑party app ecosystems, or a larger internal storage capacity without using a microSD card. Also not suited for users who need guaranteed long‑term reliability data or who prefer premium‑tier build quality beyond the aluminum/AG glass chassis.

Pros

✓Powerful balanced amplification delivering up to ≥950 mW per channel, capable of driving high‑impedance headphones and planar drivers.
✓Neutral, clear, analytical sound signature praised by reviewers for detailed hi‑res playback.

Price History

Current

$329.99

Average

$330.59

Lowest

$329.99

Highest

$490.72

0

Best Seller Rank History

Now#18Best#16Worst#239 +199

Lower = better sales rank

Specifications

Audio

DAC4x Cirrus Logic CS43198

Amplifier TypeFully balanced 2-stage

Headphone Output (3.5mm)3.5 mm (PO/LO/SPDIF)

Headphone Output (4.4mm)4.4 mm balanced (PO/LO)

Maximum Output Power (Balanced, Super High Gain)≥950 mW @32Ω mW

Battery

Battery Capacity4000 mAh mAh

Battery Life (Single-Ended)15 hours minutes

Battery Life (Balanced)12.5 hours minutes

Charging SupportPD2.0/PD3.0 PPS fast charging

Connectivity

Bluetooth Version5.0

Bluetooth Codecs (TX)AAC, SBC, aptX, aptX HD, LDAC, LHDC

Bluetooth Codecs (RX)SBC, AAC, LDAC

USB Port TypeDual Type-C (USB 3.0 data, Power IN)

Coaxial OutputLow-jitter coaxial

Design

Width68 mm mm

Height121 mm mm

Depth17 mm mm

Weight193 g g

Display

Screen Size4.7 inches mm

Resolution750 x 1334

Pixel Density326 ppi ppi

Panel TypeLCD

Features

Supported Audio FormatsMP3, FLAC, WAV, APE, AIFF, WMA, ALAC, OGG, AAC, DSD, DFF

RGB LightingPulsing RGB lights

Customizable Multi-Function KeyYes

General

Warranty1 year

Color OptionsTitanium Gold, Dark Blue

Performance

ProcessorQualcomm Snapdragon 680 octa-core (6nm)

RAM4 GB GB

Software

Operating SystemAndroid 13

Storage

Internal Storage64 GB GB

Expandable StoragemicroSD up to 2 TB GB

Dimensions & Weight

Weight0.42549216566 pounds

Research Sources

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FiiO M21

Expert Review Analysis

Price History

Best Seller Rank History

Specifications

Audio

Battery

Connectivity

Design

Display

Features

General

Performance

Software

Storage

Dimensions & Weight

Research Sources

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