Good dashcamera for me is giving you whats accurate when you needed it most. Its the clarity of the recorded video as well as reliable record on the road. 70Mai has been on my list for a while since the company debuted with the Mini Dash Camera as well as the expensive one with the integrated Baidu Map (works in China only).
What I really liked about this rearview mirror dash camera is the way it is mounted, as well as less vibration while the car is moving is also important to me since it makes me dizzy then the mirror is shaky and Im trying to catch a glimpse of whats going on behind me.
There is an attachment that can be bought separately, its the rear camera, which can provide you recording at the back while your on the go. There are some occassion that things happens behind your back. At least you are protected with the recording.
Check out my video review as well as the photos.