• 1.14 inch, 135*240 dpi TFT screen

• Bluetooth 4.0 chip, IP68 waterproof 

• OS Requirements: iOS 8.0 & above, Android 4.4 & above

• 100mAh polymer lithium battery, long time standby 

• Hear rate and blood pressure monitoring 

• Sedentary reminder and sleep quality monitoring 

• GPS activity tracker and call vibration reminder 

Specification:

• Model: No. F21 Heart Rate smart bracelet 

• App OS: iOS8.0&above, Android4.4&above 

• Main function: Heart rate monitoring, blood pressure, step, distance, calories, monitoring, stopwatch, countdown, call alert(call/name), information alert, alarm clock alert, anti-loss alert, sedentary alert, female physiological function alert, remote control photo shoot, raised wrist screen, etc

• Sensor: KXTJ2-1009 

• CPU chip: nRF52832 

• HR sensor: PD70-01C-TR7 

• Vibration: yes

• Waterproof: IP68 

• Supported Language: Chinese simplified, Chinese traditional, English, German, Russian, Japanese, French, Korean, Portuguese, Spanish, Italian, Persian, Vietnamese 

• Screen: 1.14 inch, 135*240 dpi TFT

• Bluetooth: BLE 4.0 

• Strap material: Silicon 

• Dimension Host: 47*24*13mm 

• Strap: 260*24*13mm 

• Other Operation: Single point touch Key, Wrist senses 

• Battery: Li-polymer Battery 

• Capacity: 100mAh 

• Standby time: 7-10 days 

• Charging: Magnetic suction charge Cable 

• Charging time: about 2 hour