Ember Smart Watch (P22 smart watch)

Screen: IPS color screen
Resolution: 240*240
Bluetooth version: BLE 4.0
Memory: 32M
Battery capacity: 180 mAh
PPG chip: HRS 3300
Sensor: Three-axis gravity sensor
System requirements "Android 4.4 and above, iOS9.0 and above, support Bluetooth 4.0