• 1.3-inch high-definition large screen, multiple dials for options, free to switch to meet your personal style

• 24 hours uninterrupted monitoring of body temperature changes, accurate monitoring

• Support real-time heart rate monitoring, blood pressure and blood oxygen detection, care about your health

• Support 24-hour breathing rate monitoring, care for your lung health

• Tracking your sleep time and quality, help keep a healthy sleep

• Builti-in multiple sports modes: running, cycling, skipping, basketball, fitness, table tennis, badminton etc.

• Smart information reminder: incoming call, SMS, Wechat, QQ, and other social APP message reminder

• IP68 waterproof design, worry-free to swim

• Other function: remote camera, weather forecast, stopwatch, raise hands to brighten screen

Specification:

• Product model: F81

• Main control chip: Nordic52832

• Body temperature sensor: CT1711

• Optoelectronic chip: SLR7R30

• Waterproof level: IP68

• Compatible system: Android 4.4 and above, iOS 8.2 and above

• Screen size: 1.3 inches color screen TFT 240*240

• Screen type: IPS HD TFT

•  Bluetooth: 4.2BLE (low power consumption)

• Battery type: high density polymer lithium battery

• Battery capacity: 200mAh

• Charging method: magnetic

• Charging time: about 3-4H

• Battery life: 6-13 days of use, 20-40 days of standby

• Control method: full screen touch control, mobile APP control

• APP languages: Chinese, English, Traditional, Japanese, German, Spanish, French, Italian, Thai, Russian Firmware languages: Chinese, English, Traditional, Japanese, French, German, Italy, Spain, Russia, Portugal, Malay , Korean, Poland

• Shell: Metal alloy

• Bottom shell: PC+ABS

• Strap: leather / metal