This Blackview fitness watch in Black is $19, down from $30. It works with iOS and Android. Shipping is free with Prime. Shop Now at Amazon
Features
Bluetooth call support w/ built-in speaker & microphone Heart rate, SpO2, sleep & stress monitoring 100+ sports modes w/ GPS route tracking via app IP68 waterproof rating 350mAh battery; up to 7-day use, 30-day standby Compatible w/ Android 6.0+ & iOS 9.0+
