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WOLFBOX G840S 12″ 4K Mirror Dash Cam Review

The WOLFBOX Mirror Dash Cam boasts 4K front and 1080p rear resolution, a larger screen to reduce blind spots and impressive night vision capabilities.


  • Price & Ratings
    • Priced at $119.99 with a 37% discount from $189.99.
    • Rated 4.3 out of 5 stars from 9,568 reviews.
    • Customer’s Choice in Car In-Mirror Mounted Video Players by WOLFBOX.


  • Stunning 4K UHD Resolution: 2160p front and 1080p rear camera.
  • 12″ Larger Screen: 1.5 times larger than a rearview mirror for reduced blind spots.
  • Enhanced Night Vision: WDR & HDR technology and a Starvis sensor for clear images even at night.
  • GPS Tracking: External GPS antenna for tracking and playback of GPS info.
  • 24H Precise Parking Monitor: Time-lapse mode for power-saving while monitoring when parked.
  • USB C Power Supply: Upgraded from Mini-USB for better stability and temperature resistance.
  • Smart Functions: Streaming media rearview, G-Sensor, loop recording, adjustable display view angle, and more.


  • High Resolution: Offers clear 4K front and 1080p rear video quality.
  • Wide Screen: A larger screen reduces rearview blind spots for safer driving.
  • Night Vision: Excellent performance in low-light conditions.
  • GPS Tracking: Allows for precise location and route tracking.
  • Parking Monitor: Ensures continuous monitoring when the car is parked.


  • No WiFi: Lacks WiFi connectivity for remote access or app control.
  • Fixed Rear Camera: Not compatible with other rear cameras; rear camera replacement is challenging.

Comparison with Similar Products

  • WOLFBOX G890 12″ 3 Channel Rear View Mirror Camera: Offers triple mirror dash cams with hardwire kits.
  • KQQ 4K Mirror Dash Cam: Provides a touch screen 10″ IPS display at a lower price.
  • ROVE R2-4K Dash Cam: Offers WiFi connectivity and a wider angle but lacks a mirror form factor.

Overall Verdict

The WOLFBOX Mirror Dash Cam with document number 1 is an impressive device that offers a 4K front and 1080p rear resolution. Its larger screen helps to reduce blind spots, and it has commendable night vision capabilities. Additionally, the GPS tracking and parking monitor functions enhance its utility for both driving and parked modes. However, the lack of WiFi may limit remote functionalities, and the fixed rear camera may not accommodate replacements easily. If you prioritize high-resolution video and reliable night vision in a mirror dash cam that doesn’t require WiFi connectivity, the WOLFBOX Mirror Dash Cam with document number 1 offers great value for its price and functionality.

WOLFBOX 4K Mirror Dash Cam Backup Camera

List Price: $119.99

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The WOLFBOX G840S Mirror Dash Cam impresses with its 4K front and 1080p rear resolution, a larger screen reducing blind spots, and commendable night vision capabilities.WOLFBOX G840S 12" 4K Mirror Dash Cam Review