DOOGEE CS2 Pro Smart Watch, 1.69 inch LCD Color Screen, 5ATM Waterproof, Support 10 Day Endurance & 14 Exercise Modes & Blood Oxygen Monitoring(Black)

1.Waterproof level: 5ATM
2.Screen size: 1.69 inch
3.Screen type: TFT-LCD
4.Screen cover: glass
5.Middle frame: aluminum alloy frame
6.Bottom shell material: PC+ABS
7.Wristband material: silica gel
8.Bare metal weight(Including strap): 42g
9.Watch size: 44x37x10.9mm
10.Package size: 110x76x56mm
11.MCU: Nordic nRF52840
12.Three-axis sensor: STK8321
13.PPG heart rate sensor: PAH8009
14.Touch chip: Sea Oak 716S
15.Screen resolution: 240x280
16.Flash: 128MB
17.Bluetooth: 5.0
18.Operating voltage: 3.8V
19.Battery capacity: 300 mAh
20.Battery type: Lithium polymer
21.Charging method: magnetic charging
22.Charging time: less than 2.5h
23.System: iOS 9.0+ / Android6.0+
24.Support language (General): English, German, Italian, French, Spanish, Japanese, Russian, Portuguese
25.Font: English, German, Italian, French, Spanish, Japanese, Russian, Portuguese
26.Operating temperature: -20 to 50 degrees Celsius