You can win a Xiaomi Mijia Action Camera! I compared the similar priced YI Lite and Xiaomi Mijia incl. EIS Comparison, Audio Test and Specs.
MGCOOL Explorer 3 was just released offering Image Stabilisation in 4K resolution, a 2" Touchscreen and .h264+ video codec.
YI Lite Action Camera has similar specs compared to original YI camera (Xiaomi YI, YI 2K), but within YI 4K body incl. LCD touch screen and image stabilisation!