Product information： 

App operating system: IOS8.0 or above, Android4.4 or above
Screen size: 0.96" 80*160
size:
Host: 48.5*22.5*12.0mm
Whole machine: 270*22.5*12.0mm
Strap material: metal strap
Standby time: 7-10 days
Bluetooth: BLE 4.0
Charging time: about 2 hours
Charging method: clip charging cable
Main functions: heart rate monitoring, blood pressure, step counting, distance, calories, sleep monitoring, stopwatch, countdown, call reminder (caller number/name), message reminder, alarm clock reminder, anti-lost reminder, sedentary reminder, female menstrual period function reminder , Take pictures remotely, raise the wrist to brighten the screen, etc.
Support languages: English, German, Russian, Japanese, French, Korean, Portuguese, Spanish, Italian, Chinese Simplified, Chinese Traditional,