Amazfit Neo Smart Watch (AMAZFIT-NEO-BLACK) - Display: 1.2-inch Standard Black And White, Button 4 (Select/Back/Up/Down), Capacity: Accelerator Sensor, Biotracker Ppg Bio-Tracking Optical Heart Rate Sensor, Bluetooth Frequency: Bluetooth 5.0 Ble, Water Resistant: 5atm2, GPS Supported, Supporting Devices: Android 5.0 Or Ios 10.0 And Above, Colour: Black