[Scuderia_Turini]

Hello Peter,

My SQ23 Camera arrived and I have had success with it. It is a little bit fiddly to work with but overall will do the job. I attached it to the roof of a tall car and so the height needed for clearance is more than I anticipated (100mm). No prob for your clever camera chassis though/

The WiFi connection to all three of my Android devices works well although the range is short (approx 7metres). The screen shows the view through the lens and allows user to take photo snaps or video either to the on-board SD Micro Card or the devices memory.  Also allows playback. WiFi drains the battery though so best to switch it off once set up (video continues to record). 
The App ("Sports DV") also allows settings (in English or Chinese) to be set but the error messages are always in Chinese so can be challenging. It is best to set the auto Power Off time to more than the default 1 minute and one can turn off the audio recording. Date Stamping on/off available as well as stuff like the recording resolution. 
The wide-angle lens means that the extremities of the picture are slightly curved but not a problem in normal use.
 
Battery life is not great and will only allow about 30 minutes recording although I had WiFi on. Annoyingly, it will not function when on charge so extending the run time by powering from a power-bank will not work but apparently does work on the previous model SQ11 or SQ12.  

Came with a water-proof housing that someone reviewed as letting in water when submerged so probably best described as rain-proof although rain drops on the window would probably spoil the video anyway.

Overall I would say that its OK as an affordable action camera but not in the Go-Pro class.

Short video clip here -
 

My Camera Car is battery powered and has a slot-guide so it functions a a bit of a rail-cleaner as well :-)

   
A Tamiya Mini 4WD 1:32 Toyota 4-Runner with home-made roof-rack.