Subor, Coolbaby RetroMini RS-90
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The RetroMini RS-90 is a vertical retro gaming handheld released in 2017 by Subor, Coolbaby. It is built around the Ingenic JZ4725B with 32 MB DDR2, has a 2.0 inch TFT 240 x 160 display, and uses a 1020 mAh BL-5C (Swappable) battery. Its documented emulation ceiling is GENESIS full speed, placing it in the budget tier for retro game emulation.
How far can it go?
Runs everything up to Genesis / Mega Drive at full speed, and pushes as far as Game Boy Advance with some compromises.
Full speedGreatPlayableBarelyWon't run
Realistic ceiling: GBA maximum
Specifications
| Chip (SoC) | Ingenic JZ4725B |
|---|---|
| CPU | XBurst |
| GPU | ❌ |
| RAM | 32 MB DDR2 |
| Screen size | 2.0 inch |
| Screen type | TFT |
| Resolution | 240 x 160 |
| PPI | 144.22 PPI |
| Refresh rate | 60 Hz |
| Aspect ratio | 3:2 |
| Battery | 1020 mAh BL-5C (Swappable) |
| Storage | External MicroSD |
| Connectivity | ❌ |
| Speakers | Single Mono Front facing |
| Charge port | Micro USB |
| Video output | ❌ |
| Audio out | 3.5mm Headphone |
| Dimensions | 105 mm x 70 mm x 22 mm |
| Weight | 103 grams |
| Shell | Plastic |
| Colors | Transparent Black |
Pros & cons
👍 Pros
- Portability
👎 Cons
- Weak CPU
- Bad emulators support
- Only 2 face buttons
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