Good for
Genesis, GBA, SNES, Game Boy
Support listed to
PS1
OS
Linux (EmuELEC)
Released
Jul 2024
The M21 is an ultra budget vertical retro handheld from SJGAM with a 3.5-inch 640×480 TFT screen and runs Linux (EmuELEC). It is best suited for Genesis, GBA, SNES, Game Boy, with support listed up to PS1. It typically sells for around $40.
Played on the SJGAM M21
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Emulation
Supports 11 of 18 tested systems: 5 at excellent, 1 running well.
Mid-generation systems
Limited5 of 5 systems listed as playable or better
Modern systems
Unsupported0 of 4 systems listed as playable or better
Classic systems
Excellent6 of 6 systems listed as playable or better
Sixth-generation systems
Unsupported0 of 3 systems listed as playable or better
Emulation source notes
- 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
- 3DS: Nintendo 3DS: Either cannot run any games at all or games are unplayably slow
- GBA: Nintendo Game Boy Advance: Almost all games playable at full speed without frameskip
- N64: Nintendo 64: Most games playable but mostly with frameskip, struggles with harder to emulate games
- NES: Nintendo Entertainment System: Almost all games playable at full speed without frameskip
- PS1: Sony Playstation: Most games playable at full speed, a few games have lower frame rates but still mostly playable with frameskip
- PS2: Sony Playstation 2: Either cannot run any games at all or games are unplayably slow
- PS3: Sony Playstation 3: Either cannot run any games at all or games are unplayably slow
- PSP: Sony Playstation Portable: Only the easiest to emulate games are barely playable
- Wii: Nintendo Wii: Either cannot run any games at all or games are unplayably slow
- SNES: Super Nintendo Entertainment System: Almost all games playable at full speed without frameskip
- Wii U: Nintendo Wii U: Either cannot run any games at all or games are unplayably slow
- Saturn: Sega Saturn: Only the easiest to emulate games are barely playable
- Switch: Nintendo Switch: Either cannot run any games at all or games are unplayably slow
- Genesis: Sega Genesis / Mega Drive: Almost all games playable at full speed without frameskip
- Game Boy: Game Boy / Game Boy Color: Almost all games playable at full speed without frameskip
- GameCube: Nintendo GameCube: Either cannot run any games at all or games are unplayably slow
- Dreamcast: Sega Dreamcast: Most games playable but mostly with frameskip, struggles with harder to emulate games
Specifications
Display
Screen
3.5 inch
Aspect ratio
4:3
Resolution
640 x 480
Pixel density
228.57 PPI
Panel
TFT
Refresh rate
60 Hz
Performance
Chipset
"N909"
CPU
Cortex-A7
CPU clock
1.2 GHz - 1.8 GHz
CPU cores
2
CPU threads
2
GPU
Mali-400 MP2
GPU clock
500 MHz
RAM
1 GB DDR4
Storage
Internal & External MicroSD
Architecture
ARM
Build
Battery
3000 mAh
Weight
208 grams
Dimensions
123 x 78 x 25 mm
Material
Plastic
Charge port
USB-C
Controls
Shoulder buttons
Inline
D-pad
Top
Thumbsticks
Symmetrical
Extra buttons
Menu, Power, Volume +-
Features
FAQ
- What systems can the SJGAM M21 emulate?
- The SJGAM M21 plays systems up to PS1 well. It is at its best with Genesis, GBA, SNES, Game Boy.
- Can the SJGAM M21 play PS1 games?
- Yes. PS1 performance on the SJGAM M21 is rated good in our catalog. Sony Playstation: Most games playable at full speed, a few games have lower frame rates but still mostly playable with frameskip
- Can the SJGAM M21 play N64 games?
- Only partially. N64 on the SJGAM M21 is playable with compromises. Nintendo 64: Most games playable but mostly with frameskip, struggles with harder to emulate games
- How much does the SJGAM M21 cost?
- The SJGAM M21 typically sells for around $40, which puts it in the ultra budget tier of retro handhelds.
- What operating system does the SJGAM M21 run?
- The SJGAM M21 ships with Linux (EmuELEC).
- What screen does the SJGAM M21 have?
- It has a 3.5 inch TFT display with a 4:3 aspect ratio, running at 640 x 480 at 228.57 PPI.
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