KM90, thin compact smartwatch, light review

This sold as KM90 is like a flattened and even more compact non-curved U17. I have no idea who the manufacturer is. Actual measurements with a calliper yields a 35.5×30.75mm display (1.85 ) in a very compact 40.5×34.2mm body. With a 39.0×33.7mm glass it offers really thin bezels and hence a 77% display coverage (and 83% [ ]