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Ritmix RZX-50 (KoHotech) Handheld Gaming Device Review

Ritmix RZX-50 (KoHotech) Handheld Gaming Device Review

Overview

The Ritmix RZX-50, also known as KoHotech, is a horizontal handheld gaming console released in 2011. It runs an open-source operating system and is designed for retro gaming enthusiasts. The device is built with a plastic shell and features a 4.3-inch TFT display with a resolution of 480x272 pixels. It is powered by an Ingenic JZ4755 processor clocked at 400 MHz, paired with 64 MB DDR2 RAM and 4 GB of internal storage, expandable via MicroSD card.

Key Specs Highlights

  • CPU: Ingenic JZ4755 (XBurst) 400 MHz single-core
  • RAM: 64 MB DDR2
  • Storage: 4 GB internal + MicroSD expansion
  • Display: 4.3-inch TFT, 480x272, 16:9 aspect ratio, 60Hz refresh rate
  • Battery: 1800 mAh
  • Weight: 192 grams
  • Dimensions: 182 x 80 x 15 mm
  • Audio: Dual stereo speakers, 3.5mm headphone jack
  • Video Output: AV out
  • Connectivity: None (no Wi-Fi or Bluetooth)
  • Sensors: Microphone

Who It Is For

The RZX-50 is ideal for retro gaming fans who want a simple, affordable device to play classic 2D games. It handles most SNES titles at 60 FPS and many 2D PS1 games well, though 3D games may struggle. It is not suitable for modern gaming or demanding emulators.

Buying Notes

As a device from 2011, the Ritmix RZX-50 is now a collector's item or a budget option for retro enthusiasts. No official price is available; expect to find it on second-hand markets. Check for battery condition and screen quality when buying used.

Specifications
CPUXBurst
RAM64 MB DDR2
NameRitmix RZX-50
BrandKoHotech
Weight192 grams
Battery1800 mAh
StorageInternal 4 GB, external MicroSD
SpeakersDual stereo
Grip TypeHorizontal
ProcessorIngenic JZ4755
Body ColorBlack
Dimensions182 mm x 80 mm x 15 mm
Screen PPI128.3
Screen Size4.3 inches
Screen TypeTFT
Audio Output3.5mm headphone jack
Release Date2011
Video OutputAV out
CPU Frequency400 MHz
Other SensorsMicrophone
Shell MaterialPlastic
Operating SystemOpen source
Screen Resolution480 x 272
Screen Aspect Ratio16:9
Screen Refresh Rate60Hz
CPU Cores and Threads1 core 1 thread
Emulator Game SupportMost SNES runs at 60 FPS, most 2D PS1 runs well (not all at 60 FPS), but cannot smoothly play 3D games

Full specs and updates on our site: https://www.oldman.dpdns.org/en/handheld/ritmix-rzx-50

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