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Black rectangular four-channel dash cam with front, rear and side lenses, adhesive and suction mounts, matte finish

Rexing

Rexing R4 4-Channel 1080p Dash Cam GPS Wi-Fi 170°

SKU CH-PMX3-G4HJR

A four-channel dash cam records front, rear, left and right views in 1080p with a 170° ultra-wide angle, plus GPS, Wi-Fi, parking mode and collision detection

  • ColorBlack
  • TypeDash Cams
  • Four-channel 1080p coverage captures front rear left right views
  • 170° ultra-wide angle reduces blind spots across all four cameras
  • Built-in GPS and Wi-Fi enable location tagging and phone file transfer
  • Parking mode with collision detection records impacts while vehicle is off
  • Supercapacitor design withstands temperature extremes better than batteries

Four-Channel Coverage

The Rexing R4 records front, rear, left and right views simultaneously, each at 1080p resolution through a 170° ultra-wide lens. Built-in GPS and Wi-Fi let you review footage on a mobile device via the companion app. A supercapacitor replaces a traditional battery for greater heat tolerance. Two mounting options — adhesive or suction cup — suit different windscreen shapes.

Sustained Recording Behaviour

Loop recording continuously overwrites the oldest files so the card never fills during long journeys. Parking mode keeps the unit in a low-power state while the vehicle is off; a detected impact wakes the system to capture an event clip before returning to standby. IR night vision maintains usable image quality in low-light conditions without auxiliary illumination. The supercapacitor ensures reliable starts after extended hot soak periods.

Storage Interface Limits

Footage is written to a single microSD card slot that accepts Class 10 or UHS-I cards up to 256 GB capacity. Cards larger than 256 GB are not supported by the controller. Sustained write speed must meet the UHS-I minimum to avoid dropped frames across four concurrent 1080p streams. The optional CPL filter reduces windscreen glare but does not alter the storage bandwidth requirement.

Highlights

  • Four-channel 1080p coverage captures front rear left right views
  • 170° ultra-wide angle reduces blind spots across all four cameras
  • Built-in GPS and Wi-Fi enable location tagging and phone file transfer
  • Parking mode with collision detection records impacts while vehicle is off
  • Supercapacitor design withstands temperature extremes better than batteries

Specifications

ColorBlack
TypeDash Cams

Questions about this item

Does the 4-channel 1080p dash cam run hot or draw much power during all-day parking mode?

The supercapacitor handles heat better than a battery and the cam only powers up when collision detection triggers, then shuts down again to save energy.

What must I buy separately before the Rexing R4 can record?

A Class 10 or UHS-I microSD card up to 256 GB is required; the box includes mounts, charger and cables but no card.

Will the 170° front lens and three additional cameras work with my older 12 V accessory socket?

Yes, the supplied car charger plugs into a standard 12 V socket and powers all four 1080p channels simultaneously.

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