Resolution
750 x 1334 px
Weight
193 g
General info
| Internal Storage i | 64GB (15 others) |
| Audio Outputs i | 3.5 mm, 4.4 mm, USB-C (3 others) |
| Dac name i | Cirrus Logic CS43198 x4 (1 other) |
| Audio File Types i | MP3, FLAC, WAV, APE, AIFF, WMA, ALAC, OGG, AAC, DSD, DFF, MQA |
| Battery Life i | 15 hours (1 other) |
| Release date i | 8 months ago05/13/2025 |
| Charge time i | 1.5 hours (1 other) |
| Has an external memory slot i | ✔ (37 others) |
| Signal to noise ratio (snr) i | 124 dB |
Design
| Screen Size i | 4.7" (3 others) |
| Resolution i | 750 x 1334 px (1 other) |
| Pixel Density i | 326 ppi (2 others) |
| Weight i | 193 g |
| Display Type i | LCDFiiO M21 |
| Has a touch screen i | ✔ (37 others) |
| Volume i | 139.88 cm³ |
| Width i | 68 mm (1 other) |
| Thickness i | 17 mm |
Connectivity
| Bluetooth Version i | 5 (15 others) |
| Has aptx i | ✔ (23 others) |
| Has ldac i | ✔ (20 others) |
| Has ldhc i | ✔ (9 others) |
| Has aptx hd i | ✔ (19 others) |
| Has aptx adaptive i | ✖ |
| Has aptx lossless i | ✖ |
| Has aac i | ✔ (24 others) |
| Has aptx low latency i | ✖ |
Similar products
Frequently Asked Questions
How many audio outputs does the FiiO M21 have?
At 3.5 mm, 4.4 mm, USB-C, the FiiO M21 ranks #2 out of 27 — see ranking mp3 player products — one of the Highest audio outputs in this category.
How long does the FiiO M21 take to charge?
At 1.5 hours, the FiiO M21 ranks #2 out of 20 — see ranking mp3 player products — one of the Lowest charge time in this category, 50% below the category average.
How big is the FiiO M21 screen?
At 4.7", the FiiO M21 is 36% above the category average for screen size, ranking #12 out of 52 — see ranking mp3 player products.
How heavy is the FiiO M21?
At 193 g, the FiiO M21 is 33% above the category average for weight, ranking #44 out of 58 — see ranking mp3 player products.
What is the pixel density of the FiiO M21?
At 326 ppi, the FiiO M21 is 26% above the category average for pixel density, ranking #9 out of 45 — see ranking mp3 player products.
What is the battery life of the FiiO M21?
At 15 hours, the FiiO M21 is 23% below the category average for battery life, ranking #11 out of 27 — see ranking mp3 player products.
How much storage does the FiiO M21 offer?
At 64GB, the FiiO M21 is 23% above the category average for storage, ranking #8 out of 56 — see ranking mp3 player products.
How does it compare?
How does the FiiO M21's charge time compare to similar mp3 playerss?
At 1.5 hours, the FiiO M21 leads the FiiO M11 Plus (3.5 hours) by 57%.
How does the FiiO M21's weight compare to similar mp3 playerss?
At 193 g, the FiiO M21 leads the FiiO M23 (299 g) by 35%.
How does the FiiO M21's battery life compare to similar mp3 playerss?
At 15 hours, the FiiO M21 leads the FiiO M23 (10.5 hours) by 30%.
How does the FiiO M21's screen size compare to similar mp3 playerss?
At 4.7", the FiiO M21 leads the Astell & Kern A&norma SR35 (3.6") by 23%.
How does the FiiO M21's pixel density compare to similar mp3 playerss?
At 326 ppi, the FiiO M21 trails the Astell & Kern A&norma SR35 (408 ppi) by 20%.
How does the FiiO M21's signal-to-noise ratio (snr) compare to similar mp3 playerss?
At 124 dB, the FiiO M21 leads the Activo P1 (120 dB) by 3%.