Review on 🚗 REXING M2 Smart BSD ADAS Dual Mirror Dash CAM 12” IPS Touch Screen: Full HD Front & Rear Video, GPS, Stream Media, Night Vision, Parking Monitor, Blind Spot Detection & Backup Camera for Car, Truck, Taxi by Noel Schmits

I knew that the advanced security features would not compare to a more sophisticated factory system, but ADAS and BSD on these devices are completely unreliable. After a week of calibrating and recalibrating during my commute, I finally gave in and turned it off. The front camera has excellent quality day and night, but the rear camera is useless. Too grainy, lacking in detail, and severely overexposed at night when there are cars behind you with their headlights on. The device is very heavy and I couldn't stop it from vibrating after tightening everything that could be tightened. The only useful feature of this unit is the front DVR if your rearview mirror arm can take the weight.