In the end I opted for the iTracker because they at the same price offers a bit more power and better integrated into the car.
Operated in a BMW X5 on the windscreen above next to the mirror - the USB charging cable is absolutely sufficient until then. Socket with continuous voltage in the foot area of the passenger's side.
Obviously, some embellished reviews are Registered yet.
The Technaxx:
FACTS:
4.7 cm wide, 6 cm high and 2 cm deep (ie very flat)
Display 3.6 cm diagonal
elegant design (black chrome), characterized not so inconspicuous
2 Infrared LED
no HD picture - in the HD setting is the image just to 16: 9 scaled
POSITIVE:
good all-round sharpness
Sound quality far better than that of the iTracker
in photo mode and face Smilieerkennung (funny, consumption but no one)
NEGATIVE:
to detect slight bucking when playing video, despite Class 10 Micro SD card
Infrared illumination something too bad (about 50 cm)
Motion sensor reacts slightly worse (range approx 2 m) - long hood
- Thus I had to put down the camera 10 so that movements are better perceived in front of the car
too weak for shooting in the dark, even with infrared (does not light far enough)
- In motion sensor operation it turns hardly to
identical menu software (compared to iTracker), but 2 menu points less (display shutdown missing)
mediocre usability of buttons (menu)
CONCLUSION: point deduction due to image quality and poor infrared illumination. Shots in the dark too weak. Missing display shutdown (very advantageous because the camera indeed turned ISS when the car is parked).