Use with smartphones with iOS 7.1 or later / Android 4.4 or later, BT 4.0 or later systems. More Features:
Sleep Tracking: Automatically tracks your sleep duration and consistency with comprehensive analysis of sleep quality data so you can see your sleep trends and get a better routine.
Alarm Alert: Set silent alarms on the tracker to wake you up and not disturb your partner.
Remote Camera Shooting: Operation on the screen could remotely control photography shooting.
Wrist Sense: The screen is automatically lightened up when you turn your wrist towards you.
Model: ID130Plus HR
BT Transmission Distance: 10 Meters (33 feet)
CPU: Nordic nRF52832-QFAA
Sensor: KIONIX KX022-1020
HR Sensor: silicon labs Si1142
Screen: 0.96 inch OLED
Material: upper casing: PC; strap: TPE
Dimension: suits for wrist size: 5.4 inch – 7.6 inch
Battery type: Li Battery
Battery capacity: 65mAh
Working time: 5-10 days
Charging time: 1-2 hours
Weight: 0.8oz (22g)
Brand : Letsfit