Xiaomi Watch S1

Specs 

Display: AMOLED of 1,63″.

Battery: 470 mAh | up to 12 days | Charges in 60 minutes.

Exercises: 117 exercise modes.

Durability: 5 ATM

Connection: Bluetooth 5.2.

Operating system: Android 6.0 or later versions; iOS 10 or later

Colors:  Black