Description: Product specifications: Products: smart watches Material: plastic Waterproof grade: IP68 Battery capacity: 230 mA Charging time: 2.5H Charging method: USB magnetic attraction Pixel: 240*280 Screen size: TFT-LCD 1.7 inches Bluetooth: Bluetooth BT5.0 Touch type: full screen touch Battery life: 9-15 days of use and 45 days of standby Colors: black, blue, pink, military green, white, orange, light blue and purple Specifications: Performance data: Gravity sensor: support Heart rate: photoelectric heart rate APP:Runmifit Memory: 64Mbit Screen type: TFT-LCD Battery type: li-polymer Weight: 41.5g Packing weight (g): 118g Bracelet size: 4.25*3.6*0.96cm Packing box size: 14.1*8.9*2.8MM Adjustable length of wrist strap 12- 20cm Compatible systems: Android5.0 or above and I0S9.0 or above Main functions: 1. Health monitoring (heart rate, blood pressure, blood oxygen, sedentary reminder, drinking water reminder, sleep monitoring, female menstrual reminder, taking off, breathing training) 2. Exercise monitoring (step counting, calories, distance, 16 kinds of exercise modes) 3. Other functions (message reminder display, call reminder, photo control, wrist display, alarm clock, custom dial, brightness level, weather, stopwatch, countdown, music control) 4. Software message push (Facebook, Twitter, line, WeChat, etc.) 5. Bracelet supports displaying Chinese, English, French, German, Italian, Japanese, Western, Russian and Dutch Package Included: 1* smart watch 1*USB cable 1* instruction 1* packing box