Have you ever regretted buying a car DVR? Choosing the right GPS rear view mirror can be tricky—but these 5 tips will help you make the right decision.

1. Shooting Angle

Many manufacturers boast wide-angle lenses with a field of view up to 140° or even 270°, claiming there are no blind spots. However, extreme wide angles may cause edge distortion or blurring, which could be problematic in side collisions.
If video footage appears blurry even at close range, the DVR might be a counterfeit or poor-quality product. Rather than blindly chasing a wider field of view, a 120°–140° angle is generally sufficient for daily driving needs—provided it’s installed correctly.

2. Camera Quality, CMOS, and Night Vision

The higher the pixel count, the clearer the image. A DVR with a CMOS sensor typically offers better performance than CCD sensors, especially in low-light conditions, due to lower noise and power consumption.
For night vision, LED lights help, but quantity isn’t everything. Test DVRs by comparing video quality in both bright and dim environments using a reference like a smartphone or digital camera.

3. Recording Function and Storage

Most Android rear view mirrors support loop recording. A 1-minute loop is recommended: longer loops risk losing key moments if overwritten, while shorter loops may complicate playback.
Recording time depends on built-in and external memory capacity. Devices typically support SD or TF cards; TF cards are smaller and easier to install.

4. Power Supply

Rear view mirror DVRs usually have both built-in and external power. The built-in option is typically a lithium battery, offering better lifespan and around 2–4 hours of runtime compared to conventional batteries.

5. Installation Method

Installation varies: some DVRs use adhesive brackets, while others require modifications. Most feature 2.5-inch displays for convenient playback. However, larger screens can increase device bulk and attract theft. A compact device is less noticeable and easier to secure.

Final Thoughts

A GPS rear view mirror DVR with clear 1080p HD video, wide-angle lens, loop recording, and night vision is a valuable tool for road safety. Look for compact, high-performance options that are easy to install and meet your driving needs.

Contact us to learn more about selecting the right DVR for your vehicle.