Today's deal:

4K 1080P waterproof action sports camera is for 30% off with the coupon code 6WQ788HV. The final price is $37! Also, the code ends on 09/23.

Two color options:
Silver: http://www.amazon.com/dp/B073Z9SS2G
Black: http://www.amazon.com/dp/B073ZBT3NW

Features:
4K Ultra HD Action Camera: 4K 10fps & 1080P 30fps video 12MP image resolution CMOS-sensor & 140 degree wide angle lens
Wireless Remote Control: use WiFi to connect to the Ez iCam App
100 Feet Waterproof: IP68 waterproof housing supports diving depth up to 30m (100ft);