SJGAM
M20
- Price
- Unknown
- OS
- Linux
- Released
- Jan 2025
- Up to
- Unknown
- Screen
- 7 IPS
- Weight
- 350 grams
We’re not tracking prices for this one yet.
No reviews yet
SJGAM M20 vs. SJGAM M21
Specs, emulation, community reviews, ownership and play history, side by side.
Compare
With
Not shown to scale. Real-world dimensions are missing for one or both devices.
Quick verdict
- Better screen
- M20
- More portable
- M21
- Newer model
- M20
Main differences
- SJGAM M21 is about 41% lighter.
- SJGAM M20 has a IPS screen, versus 60 Hz TFT on SJGAM M21.
- SJGAM M20 runs Linux; SJGAM M21 runs Linux (EmuELEC).
Details
SJGAM
M21
- Price
- $40.00
- OS
- Linux (EmuELEC)
- Released
- Jul 2024
- Up to
- PS1
- Screen
- 3.5 inch TFT
- Weight
- 208 grams
We’re not tracking prices for this one yet.
No reviews yet
Specs
BetterWorse
| Spec | M20 | M21 |
|---|---|---|
| Price | Unknown | $40.00 |
| OS | Linux | Linux (EmuELEC) |
| Screen | 7 | 3.5 inch |
| Aspect ratio | 128:75 | 4:3 |
| Resolution | 1024 x 600 | 640 x 480 |
| Refresh rate | Unknown | 60 Hz |
| Panel | IPS | TFT |
| Chipset | Rockchip RK3566 | "N909" |
| CPU | Cortex-A55 | Cortex-A7 |
| GPU | Mali-G52 2EE | Mali-400 MP2 |
| RAM | 1 GB | 1 GB DDR4 |
| Storage | 64 GB/128 GB microSD card | Internal & External MicroSD |
| Battery | 4000 mAh | 3000 mAh |
| Weight | 350 grams | 208 grams |
| Dimensions | 242 × 105 × 30 mm | 123 x 78 x 25 mm |
| Video out | No | Yes |
| Bluetooth | No | No |
| Hall effect sticks | No | No |
| Analog triggers | No | No |
| Touch screen | No | No |
Emulation
Excellent › Good › Playable › Limited › Unsupported
| System | M20 | M21 |
|---|---|---|
| Classic systems | ||
| Game Boy | Unknown | |
| NES | Unknown | |
| Genesis | Unknown | |
| GBA | Unknown | |
| SNES | Unknown | |
| PS1 | Unknown | |
| Mid-generation systems | ||
| DS | Unknown | |
| N64 | Unknown | |
| Dreamcast | Unknown | |
| PSP | Unknown | |
| Saturn | Unknown | |
| Sixth-generation systems | ||
| GameCube | Unknown | |
| Wii | Unknown | |
| PS2 | Unknown | |
| Modern systems | ||
| 3DS | Unknown | |
| Switch | Unknown | |
| Wii U | Unknown | |
| PS3 | Unknown | |
Emulation source notes
- M21 DS: Nintendo DS: Most games playable but mostly with frameskip, struggles with harder to emulate games This device does not have a touchscreen, so you won't be able to play DS games that rely heavily on the touchscreen
- M21 3DS: Nintendo 3DS: Either cannot run any games at all or games are unplayably slow
- M21 GBA: Nintendo Game Boy Advance: Almost all games playable at full speed without frameskip
- M21 N64: Nintendo 64: Most games playable but mostly with frameskip, struggles with harder to emulate games
- M21 NES: Nintendo Entertainment System: Almost all games playable at full speed without frameskip
- M21 PS1: Sony Playstation: Most games playable at full speed, a few games have lower frame rates but still mostly playable with frameskip
- M21 PS2: Sony Playstation 2: Either cannot run any games at all or games are unplayably slow
- M21 PS3: Sony Playstation 3: Either cannot run any games at all or games are unplayably slow
- M21 PSP: Sony Playstation Portable: Only the easiest to emulate games are barely playable
- M21 Wii: Nintendo Wii: Either cannot run any games at all or games are unplayably slow
- M21 SNES: Super Nintendo Entertainment System: Almost all games playable at full speed without frameskip
- M21 Wii U: Nintendo Wii U: Either cannot run any games at all or games are unplayably slow
- M21 Saturn: Sega Saturn: Only the easiest to emulate games are barely playable
- M21 Switch: Nintendo Switch: Either cannot run any games at all or games are unplayably slow
- M21 Genesis: Sega Genesis / Mega Drive: Almost all games playable at full speed without frameskip
- M21 Game Boy: Game Boy / Game Boy Color: Almost all games playable at full speed without frameskip
- M21 GameCube: Nintendo GameCube: Either cannot run any games at all or games are unplayably slow
- M21 Dreamcast: Sega Dreamcast: Most games playable but mostly with frameskip, struggles with harder to emulate games
Frequently asked
- What's the difference between the SJGAM M20 and the SJGAM M21?
- SJGAM M21 is about 41% lighter. SJGAM M20 has a IPS screen, versus 60 Hz TFT on SJGAM M21. SJGAM M20 runs Linux; SJGAM M21 runs Linux (EmuELEC).
- Which is newer, the SJGAM M20 or the SJGAM M21?
- The SJGAM M20 is the newer model, released in 2025.
