Both the SJGAM M19 ($55) and the PowKiddy RGB20SX ($60) launched in April 2024, share the RockChip RK3566 chip, run Linux, and top out around PSP emulation, so the hardware gap between them is narrow. The $5 price difference makes the M19 the slightly cheaper entry point, while the RGB20SX carries PowKiddy's broader service and community track record. Buyers choosing between them will likely be swayed by build quality feel, button layout preference, and software polish rather than raw performance.
| M19 | RGB20SX | |
|---|---|---|
| Price | $55 | $60 |
| Brand | SJGAM | PowKiddy |
| Released | 2024 / 04 | 2024 / 04 |
| Type | Vertical | Vertical |
| OS | Linux / (EmuELEC) | Linux |
| Performance | ||
| Chip (SoC) | RockChip RK3566 | RockChip RK3566 |
| CPU | Cortex-A55 | Cortex-A55 |
| GPU | Mali-G52 2EE | Mali-G52 2EE |
| RAM | 1 GB LPDDR4 (Estimate) | 1 GB LPDDR4 |
| Storage | External MicroSD | Dual External MicroSD |
| Cooling | ❌ | ❌ |
| Power tier | Entry | Entry |
| Display | ||
| Screen size | 3.5 inch | 4.0 inch |
| Screen type | IPS | IPS |
| Resolution | 640 x 480 | 720 x 720 |
| Refresh rate | 60 Hz | 60 Hz |
| Pixel density | 228.57 PPI | 254.56 PPI |
| Aspect ratio | 4:3 | 1:1 |
| Body & battery | ||
| Battery | 3000 mAh | 5000 mAh |
| Weight | — | 240 grams |
| Dimensions | — | 87 mm x 143 mm x 22 mm |
| Shell | Plastic | Plastic |
| Colors | Transparent Black, Transparent Purple, Gray, White | Transparent Clear, Transparent Black, Transparent Blue, Yellow, White |
| Ports & connectivity | ||
| Wireless | — | WiFi 5, Bluetooth |
| Video out | Mini HDMI Top facing | Mini HDMI Top facing |
| Charging port | USB-C Bottom facing | USB-C x2 Bottom facing |
| Audio out | 3.5mm Headphone Bottom facing | 3.5mm Headphone Bottom facing |
| Speakers | Single Mono Front facing | Single Mono Front facing |
| M19 | RGB20SX | |
|---|---|---|
| Game Boy / Color | A | A |
| NES | A | A |
| Genesis / Mega Drive | A | A |
| Game Boy Advance | A | A |
| SNES | A | A |
| PlayStation 1 | A | A |
| Nintendo DS | A | A |
| Nintendo 64 | B+ | B+ |
| Dreamcast | B | B |
| PSP | B- | B- |
| Sega Saturn | C | C |
| GameCube | D | D |
| Nintendo 3DS | D- | D- |
| Nintendo Wii | F | F |
| PlayStation 2 | D- | D- |
| Switch | F | F |
| Wii U | F | F |
| PlayStation 3 | F | F |
Bottom line: The M19 is the cheaper option at $55.
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