SJGAM M21
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The M21 is a vertical retro gaming handheld released in 2024 by SJGAM. It is built around the "N909" (Allwinner H133) with 1 GB DDR4, has a 3.5 inch TFT 640 x 480 display, and uses a 3000 mAh battery. Its documented emulation ceiling is SNES full speed, placing it in the budget tier for retro game emulation.
How far can it go?
Runs everything up to SNES at full speed, and pushes as far as Dreamcast with some compromises.
Full speedGreatPlayableBarelyWon't run
Specifications
| Chip (SoC) | "N909" (Allwinner H133) |
|---|---|
| CPU | Cortex-A7 |
| GPU | Mali-400 MP2 |
| RAM | 1 GB DDR4 |
| Screen size | 3.5 inch |
| Screen type | TFT |
| Resolution | 640 x 480 |
| PPI | 228.57 PPI |
| Refresh rate | 60 Hz |
| Aspect ratio | 4:3 |
| Battery | 3000 mAh |
| Cooling | ❌ |
| Storage | Internal & External MicroSD |
| Connectivity | USB-C OTG |
| Speakers | Mono Front facing |
| Charge port | USB-C |
| Video output | Mini HDMI |
| Audio out | 3.5mm Headphone Bottom facing |
| Weight | 208 grams |
| Shell | Plastic |
| Colors | Gray, White, Transparent Purple, Transparent Black |
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from $40
$40
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