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REXING RexingUSA R4-RD 4-Channel Dash Cam Review (2026): A Spec-Based Look

This Rexing R4-RD 4-channel dash cam review analyzes 1 products based on published specifications, including video resolution, GPS tracking, and infrared night vision capabilities.

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This rexing rexingusa r4 rd 4 channel dash cam review covers the R4-RD, a complete vehicle monitoring system. It features four 1080p cameras for full coverage and built-in GPS for location tracking. The unit includes side cameras with infrared night vision for low-light clarity. You get Wi-Fi connectivity for app control and an OBD hardwire kit for parking mode. The black device measures 6.5 by 3.5 by 2 inches. It uses loop recording and impact detection to manage storage. This spec-based look helps you decide if this four-channel setup fits your vehicle.

  • Four 1080p cameras record front, rear, and both sides simultaneously.
  • Side cameras rotate inward for optional cabin monitoring.
  • Infrared night vision improves side and cabin footage in low light.
  • Built-in GPS logs location, route, and speed data.
  • OBD Smart Hardwire Kit is included for parking monitoring.

Good fit for

This dash cam suits daily drivers, rideshare operators, and fleet managers who need comprehensive coverage. The four-channel setup captures the road ahead, behind, and along both sides. Rideshare drivers benefit from the rotating side cameras that can monitor the cabin. The included OBD kit simplifies installation for continuous parking protection. If you want full vehicle visibility without buying separate hardwire accessories, this all-in-one package meets your needs.

Who can skip it

You should look elsewhere if you need 4K resolution, as this model records at 1080p. Buyers seeking a compact, single-unit recorder may find the four-camera setup too bulky. The system relies on the Rexing Connect App for control, so you cannot use voice commands or physical buttons for most functions. If you do not have an OBD port or prefer battery-only parking mode, the included hardwire kit may not suit your vehicle.

Verdict

The R4-RD offers complete four-channel 1080p coverage with helpful extras like infrared night vision and an included hardwire kit. It is a strong choice for users who prioritize full vehicle visibility and easy installation.

Rexing R4-RD Key Specs Explained

Video Resolution: 1080p

This resolution captures 1920 by 1080 pixels per frame. You get clear license plate details and road signs in daylight and dusk. It balances file size with clarity. Higher resolutions like 4K exist but use more storage. This setting suits drivers who need readable evidence without massive file loads.

Camera Configuration: 4-Channel

The system uses four separate lenses to record front, rear, and both sides. You see the full perimeter of your vehicle at once. This setup protects against side-swipe accidents and rear-end collisions. It is ideal for rideshare drivers or fleet managers who need total situational awareness.

Connectivity: Wi-Fi

Built-in Wi-Fi lets you connect your phone to the dash cam. You can preview clips, download videos, and adjust settings via the app. This removes the need to pull out an SD card for every review. It makes sharing incident footage with insurance or police much faster.

GPS Features: Built-in GPS

The unit tracks your location, speed, and route automatically. This data overlays on your video files. It proves your speed during an accident or verifies your route for work. You do not need a separate GPS module. This adds context to your video evidence for claims.

Design and Build Overview

The R4-RD measures 6.5 inches wide, 3.5 inches high, and 2 inches deep, according to the listing. Its compact form factor allows for discreet mounting behind rearview mirrors. The black finish helps it blend into most vehicle interiors. You can position the main unit without it becoming a visual distraction while you drive.

The system includes four 1080p cameras for comprehensive coverage. Two side cameras rotate inward to offer optional cabin monitoring. This flexibility suits rideshare drivers or fleet managers who need to record both exterior roads and interior activity. Infrared sensors on these side units improve clarity in low light, ensuring you capture usable footage even at night.

Power and connectivity are handled through included accessories. The package provides an OBD Smart Hardwire Kit for constant power and parking mode support. A Type-C connection ensures stable power delivery during driving. You control the device via the Rexing Connect App over Wi-Fi. This app-based interface removes the need for physical buttons on the main unit, keeping the dashboard clean and uncluttered.

Setup And Daily Operation

Setup begins with the included OBD Smart Hardwire Kit. This plug-and-play connection provides constant power for parking monitoring. You do not need a separate hardwire kit for this feature. The Type-C port ensures stable power during driving. An installation tool and user manual are included in the box. This setup supports continuous recording and 360-degree parking protection.

Everyday use relies on the Rexing Connect App for control. You can preview, download, and share recordings via Wi-Fi. The built-in GPS records location, route, and speed data. You review this information using the Rexing GPS Player. This integration keeps your driving history organized and accessible.

The system manages storage through loop recording. New footage overwrites old files automatically. Collision detection locks important clips to prevent overwriting. This ensures critical events are preserved. The four 1080p cameras cover the front, rear, and both sides. The side cameras rotate inward for optional cabin coverage. Infrared night vision on the side units improves low-light clarity.

This configuration suits daily drivers, rideshare vehicles, and fleets. The complete four-camera setup captures road ahead, rear traffic, and side activity. Motion and impact detection activate while parked. You get comprehensive protection without complex wiring. The app control allows you to manage settings remotely. The system balances thorough coverage with straightforward operation.

Owning The R4-RD System

Owning this four-camera system requires managing significant storage needs. You should purchase high-endurance microSD cards rated for dash cam use. The unit supports loop recording, but frequent overwriting can occur if cards are not durable. Ensure your vehicle has sufficient power output for the OBD hardwire kit. While the app handles Wi-Fi transfers, you may need a computer to review GPS data using the dedicated player software. Regularly check lens clarity and clean infrared sensors to maintain night vision quality. This model suits rideshare drivers or fleet managers needing comprehensive coverage. Other options in Car Electronics may offer higher resolution or simpler setups, but lack this complete side and rear integration. Verify that your vehicle’s OBD port is accessible and compatible with the included kit. Plan for periodic app updates to ensure continued connectivity and feature support. Consider cable management for the four channels to keep your interior tidy.

Check before you buy

  • Verify OBD port accessibility for hardwire installation
  • Buy high-endurance microSD cards for loop recording
  • Check vehicle power output for stable operation
  • Ensure computer access for GPS data review
1
Rexing R4-RD 4-Channel 1080p Dash Cam

Rexing R4-RD 4-Channel 1080p Dash Cam

Best for: comprehensive 4-side vehicle coverage and rideshare use

Camera Configuration
4-Channel
Video Resolution
1080p
Connectivity
Wi-Fi
Control Method
App Control
Color
Black
GPS Features
Built-in GPS

The Rexing R4-RD provides complete vehicle coverage with four 1080p cameras. This setup records the front, rear, and both sides of your car. It includes built-in Wi-Fi and GPS for tracking location and speed. The system features infrared night vision for clearer side footage in low light. You get a 360-degree parking monitor with motion detection. An OBD hardwire kit is included for continuous power.

Pros
  • Four 1080p cameras cover front, rear, and dual sides
  • Built-in GPS tracks location, route, and speed
  • Infrared night vision improves side camera clarity at night
  • OBD Smart Hardwire Kit included for parking mode
  • Wi-Fi app control for previewing and downloading footage
Cons
  • Video resolution is limited to 1080p across all channels
  • Unit dimensions are 6.5 inches wide by 3.5 inches high
  • Side cameras require manual rotation for cabin coverage
Good fit if
  • You need comprehensive coverage of all four sides of your vehicle
  • You want included hardwiring for parking monitoring without extra purchases
  • You drive rideshare or fleet vehicles requiring cabin visibility
Skip if
  • You require 4K or higher resolution for maximum detail
  • You prefer a single-unit camera system with fewer wires
  • You need automatic side camera adjustment without manual rotation

Verdict: Rexing R4-RD 4-Channel 1080p Dash Cam is a solid choice for rideshare drivers or fleet managers who need full side and rear visibility. It fits users who want included hardwiring and app-based management.

Specifications side by side

SpecRexing R4-RD 4-Channel 1080p Dash Cam
Camera Configuration4-Channel
Video Resolution1080p
Resolution1080p
ConnectivityWi-Fi
Control MethodApp Control
ColorBlack
GPS FeaturesBuilt-in GPS
Dimensions2 × 6.5 × 3.5 inches

Frequently asked questions

Does the Rexing R4-RD include a remote control for operation?

No, this unit does not come with a physical remote. You manage the cameras through the companion app on your smartphone. The app provides full control over recording settings and video playback. This design keeps the dashboard clutter-free while allowing you to adjust configurations remotely via Wi-Fi.

How does the built-in GPS function on this dash cam?

The built-in GPS tracks your vehicle’s location and speed during recording. This data is embedded directly into the video files. You can verify your route and velocity if you need to review an incident. It works without additional hardware, providing essential context for any footage captured.

Can I view the side camera feeds in real-time while driving?

The system captures video from all four cameras simultaneously for comprehensive coverage. You can view the live feeds through the mobile app when connected via Wi-Fi. This allows you to monitor all angles, including the sides, without needing a separate in-car display. It is ideal for rideshare drivers.

What is the maximum video resolution for the Rexing R4-RD?

Each camera records at 1080p resolution. This captures 1920 by 1080 pixels per frame for clear details. While not 4K, this resolution offers a good balance between file size and image clarity. It is sufficient for reading license plates and identifying road signs in most lighting conditions.

Is the hardwiring kit included for parking monitoring?

Yes, the OBD Smart Hardwire Kit is included in the package. This allows you to connect the unit directly to your vehicle’s OBD port for constant power. It enables parking mode without needing to purchase a separate adapter. This setup ensures your cameras remain active even when the engine is off.

How do I transfer videos from the dash cam to my phone?

You connect your smartphone to the dash cam’s Wi-Fi network using the app. Once connected, you can browse and download video files directly to your device. This wireless transfer method eliminates the need to remove the microSD card. It makes sharing footage or backing up important clips quick and easy.

What color is the main recording unit?

The main unit is black. This color choice helps it blend into most vehicle interiors, keeping the installation discreet. It is designed to sit behind the rearview mirror without drawing attention. The matte finish reduces glare from sunlight, ensuring the camera lens remains clear for optimal recording.

Does this dash cam support loop recording?

Yes, the device supports loop recording to manage storage efficiently. It automatically overwrites the oldest footage when the memory card is full. This feature ensures continuous recording without manual intervention. You should use high-endurance microSD cards to handle the frequent write cycles required for this function.

See also

Where these figures come from

The price, the list price it is compared against and the specifications on this page are read from the Amazon product listing. Scores are out of 10, based on listed specifications and buyer feedback, and no product here has been handled or measured by us. The award ribbons are calculated across the products in this guide only, and each one states the figure it was based on.