G840H | 12“ 2.5K Smart Rear View Mirror Camera, with 32GB SD Card

(85 customer reviews)


  • 2.5k Full HD Resolution, front 2.5k and rear 1080P
  • Powerful QVBR encoding technology
  • F/1.55 & F/1.8 large aperture, supports multi-level 3D denoising
  • Real Sony Stavis sensor with the IP68 waterproof level
  • 12″ IPS full touch screen
  • Seamless Loop Recording & G-sensor emergency videos lock
  • Parking Monitor Mode & Reversing Assistance
  • 32 GB SD Card Included
SKU: G840H Categories: ,


If you buy the 'like new', this product is almost brand new.
If you buy the 'good', the appearance of this product is slightly flawed, but it will never affect your normal use!

Main Features of G840H:

  • High-performance storage, using mainstream Class10 memory cards without missing seconds, frame loss, and fragmentation;
  • 12 inch ultra-large high-definition display, the front and rear pictures are displayed super clear;
  • Ultra-high transmittance optical glass mirror and capacitive multi-touch;
  • Brand new and unique humanized GUI interactive design.

WDR Technology

The G840H mirror dash cam supports extreme light collection technology, in wide dynamic scenes such as entering and exiting tunnels, night car lights, etc., making the image bright and dark details perform better.

Enhanced Night Vision

The G840H rear view mirror camera uses the industry-leading Sony sensor IMX415, with excellent low-light performance, captures crisp clear night time video footage in low-light condition which clearly shows car plates number, road signs, etc.

Loop Recording

Loop recording allows continuous recording. When the memory card is full, it will automatically overwrite the previously recorded videos and pictures. You can set 1 minute / 3 minutes / 5 minutes of different segment time loop recording.

G-Sensor & Emergency Recording

The rear view mirror dash cam support manual trigger or automatic emergency recording with built-in G-Sensor. It will lock the footage when it detect collision.Or you can double-click the screen to record and lock the video urgently when you think you need to keep an evidence.

Reversing Assistance

When your car is put into reverse, the 12” full touch screen will display the rear view with parking guidelines to help you park safely.

Parking Monitor and Time Lapse Recording

The mirror car camera supports 24 hours parking monitor.

*Warm Tips:
  • Please format micro SD card termly in case of locked videos occupied much capacity, release them necessarily;
  • Please check the functionality of dash cam with its all accessories before installation, if issues exist, please let us know;
  • Please use original accessories provided by us, just in case of compatible issues after using others', especially use 2 or 3 in 1 cigar socket will lead to 100% insufficient current supply;
  • Please change micro SD card〔Class10(10MB/sec) required〕 format to FAT 32 on PC if use micro SD card capacity > 32GB; ( a 32GB card is included)

Additional information

Weight 0.9 kg
Dimensions 34 × 10 × 7.5 cm

new, like new, good

85 reviews for G840H | 12“ 2.5K Smart Rear View Mirror Camera, with 32GB SD Card

Based on 83 reviews
Showing 2 of 83 reviews (2 star). See all 83 reviews
  1. Youssef Mehdi

    My package did not come with a 32gb TF card or any card at all for that matter. And the car charger is 4ft not the described 11.5 ft which is weird considering this product isnt cheap

  2. py

    The camera quality for the cameras are pretty good. However, the rear camera is pretty useless in the dark. I have three problems:1. The 32GB SD Card that comes with it started producing a read/write errors within the first week, so recording won’t work unless I replace it. I get that SD Cards will inevitably fail when continuously recording, but having it crap out in the first few days is a real bummer.2. The device occasionally stops turning on. The fix for that is just leaving it unplugged for a few hours before it will turn back on.3. There is no option to flip the image for the rear camera.I ended up just uninstalling it. It’s great when it works, but pointless when it doesn’t. Can’t honestly recommend this, but I’m sure majority of buyers will be happy with it.

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