Coolbaby RetroMini RS-90
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Coolbaby RetroMini RS-90 is a gaming handheld launched in 2017. Powered by JZ4725B (1-core, 360 MHz), 32 MB RAM. Features a 2" TFT LCD display (240 x 160). 1020 mAh, Swappable battery. Runs Linux.
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Preloaded Content Notice
This device may ship with preloaded ROMs or sample game files. Under U.S. copyright law (DMCA Section 1201 and 17 U.S.C. § 117), creating or distributing ROMs of copyrighted games without authorization is generally prohibited. Personal backup copies of games you legally own may fall under fair use exceptions — consult an attorney for specifics.
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Coolbaby RetroMini RS-90 is a gaming handheld launched in 2017. Powered by JZ4725B (1-core, 360 MHz), 32 MB RAM. Features a 2" TFT LCD display (240 x 160). 1020 mAh, Swappable battery. Runs Linux.
Inside is the Ingenic JZ4725B, a single-core XBurst chip built on the MIPS instruction set and clocked at 360 MHz, paired with 32 MB of DDR2 RAM. This is modest hardware, and it is best suited to 8-bit and 16-bit systems such as the Nintendo Entertainment System, Sega Master System, Sega Game Gear, Atari 2600, Game Boy and Game Boy Color, along with Sega Genesis / Mega Drive and TurboGrafx-16 / PC Engine. Game Boy Advance marks the upper limit of its emulation reach. The supported list also covers classic computers like the ZX Spectrum, Commodore 64 and MSX, plus ScummVM, Lexaloffle Games Pico-8, TIC-80 and MS-DOS.
The 2-inch TFT screen runs at 240 x 160 with a 3:2 aspect ratio and a 60 Hz refresh rate, giving roughly 144 PPI. The small panel suits handheld-era games and keeps the retro feel intact. It sits behind a plastic lens.
Controls are kept simple: a cross-style D-pad placed at the top, two face buttons and L1/R1 shoulder buttons in a shelf layout. There are no analog sticks and no rumble, and the two-button layout can feel limiting for systems that expect more inputs. A volume wheel and a physical power switch round out the hardware controls.
Power comes from a swappable 1020 mAh BL-5C battery, so carrying a spare is easy. Charging is handled over Micro USB, audio comes from a single front-facing mono speaker or the 3.5mm headphone jack, and games are loaded from a microSD card.
On the software side the RS-90 runs OpenDingux, a Linux-based system, and modding is permitted, leaving room for users who like to tinker with the setup and interface.
Ideal for: nostalgic gamers, collectors and beginners in emulation who want a light, inexpensive vertical handheld for 8-bit and 16-bit classics, and who accept modest performance and a minimal control layout.
- Manufacturer
- Ingenic
- SoC
- Ingenic JZ4725B
- Model
- JZ4725B
- Architecture
- XBurst
- Cores
- 1
- Threads
- 1
- Frequency
- 360 MHz
- Instruction Set
- MIPS
- Capacity
- 32 MB
- Technology
- DDR2
- Size
- 2.0
- Technology
- TFT
- Resolution
- 240 x 160
- Refresh Rate
- 60 Hz
- Pixel Density (PPI)
- 144.22
- Aspect Ratio
- 3:2
- Lens
- Plastic
- Battery Type
- Swappable
- Capacity
- 1020 mAh BL-5C
- Analog Sticks
- None
- D-Pad
- Cross
- D-Pad Placement
- Upper
- Shoulder Buttons
- L1, R1, Shelf
- Speaker Type
- Single Mono
- Speaker Position
- Front facing
- Charge Port
- Micro USB
- Audio Output
- 3.5mm Headphone
- Card Support
- microSD
- Operating System
- OpenDingux
- Custom OS Support
- OpenDingux
- Dimensions
- 105 mm x 70 mm x 22 mm
- Weight
- 103 g
- Body Material
- Plastic
Modding officially supported
The manufacturer officially permits or encourages modding (custom firmware, OS replacement, hardware modifications). Warranty remains valid under normal use.
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Commodore · 3 platforms
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GCE · 1 platform
Lexaloffle · 1 platform
Mattel · 1 platform
Microsoft · 2 platforms
Microsoft/ASCII · 1 platform
NEC · 2 platforms
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SNK · 2 platforms
Sega · 4 platforms
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Pros & Cons
Pros
- Portability
Cons
- Weak CPU
- Bad emulators support
- Only 2 face buttons
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Compliance & Safety
Coolbaby RetroMini RS-90 — 5 marks declared by manufacturer
Regulatory
· 1-
CE Marking
EUConformité Européenne — certifies that the product meets essential EU requirements for safety, health and environmental protection. The mark indicates the manufacturer has assessed the product and confirmed compliance with applicable European legislation (EMC, RoHS, RED directives, etc.). Mandatory for all electronic products sold in the European Economic Area since 1985.
Official source
Environmental
· 2-
RoHS
GlobalRestriction of Hazardous Substances — EU directive limiting 10 hazardous substances in electronics (lead, mercury, cadmium, hexavalent chromium, phthalates, etc.). Limit: 0.1% per substance (0.01% for cadmium). RoHS compliance is part of the CE declaration and mandatory for all electronics sold in the EU.
Official source -
WEEE
EUWaste Electrical and Electronic Equipment — the crossed-out wheeled bin pictogram indicates the obligation to separate electronic waste from household trash. Manufacturers must register with a national collection scheme and cover recycling costs. Consumers can return used devices free of charge at stores or collection centers.
Official source
Safety
· 2-
Not for children under 3
EUSafety warning per Toy Safety Directive 2009/48/EC — product not suitable for children under 3 years due to small parts presenting choking hazard. Applicable to consoles with small detachable accessories (joycons, batteries, short cables). Manufacturer sets the age limit based on safety testing.
Official source -
Electric Hazard
GlobalElectric hazard warning per ISO 7010 — the pictogram indicates the presence of high-voltage components inside. Disassembling without qualified personnel can cause severe electric shock, even after disconnecting from mains (capacitors may retain charge for a long time). DO NOT disassemble unless you are an authorized technician.
Official source
Markings displayed are based on data declared by the manufacturer. Actual product markings may vary by region and revision.
