1.47-inch large screen, easy to look the information Waterproof, convenient for daily use, you don't have to worry about water ingress Multiple sports modes, it gives you more details about your body activities. Help you exercise scientifically and achieve fitness goals IP67 waterproof function, easy to resist water splashes and sweat in life Built-in high-performance lithium battery, provides long working time, no matter if you go out for sports or entertainment, you don't need to worry about running out of power Specification: Matching system: Android 6.0 and above, iOS 9.0 and above, HarmonyOS 2 Battery capacity: 180mAh NFC: Not support Bluetooth: 5.0 Charging interface: magnetic charging cable Theoretical working time: up to 14 days Functions: keep heart rate on, turn off scientific sleep at night, exercise for an average of 30 minutes per week, turn on message notifications (50 messages, 6 calls, 3 alarms per day), turn on the screen 200 times per day. The data comes from Huawei's laboratory. Actual battery life may vary depending on usage habits. Scenarios for regular use for 9 days: keep heart rate on, use scientific sleep at night, turn on automatic blood oxygen detection, stress detection, exercise for an average of 60 minutes per week, turn on message notifications (50 messages, 6 calls, 3 alarms per day), every day Bright screen 500 times Scenarios for using AOD for 3 days: turn on screen-off display, keep heart rate on, use scientific sleep at night, turn on automatic blood oxygen detection, stress detection, exercise for an average of 60 minutes per week, turn on message notifications (50 messages, 6 calls, 3 calls per day) alarm clock), turn on the screen 500 times a day Charging time: about 45 minutes (at 25 ambient temperature) Sensor: 6-axis inertial sensor (acceleration sensor, gyroscope sensor), optical heart rate sensor Buttons: full screen touch + side buttons Screen: 1.47-inch AMOLED color screen Working temperature: -10 45 Waterproof level: 5ATM (meets ISO 22810:2010 standard 5ATM protection level requirements, can withstand pressure equivalent to 50 meters of static water depth for 10 minutes, not the actual waterproof capacity of 50 meters of water. Can be used for shallow swimming pools or seaside swimming) Water activities in the water area are not suitable for diving, diving, hot showers, hot springs, saunas, and other wading or deep water activities under high-speed water flow. Genuine leather and metal watch straps are not suitable for swimming and sports scenes with a lot of sweating, such as If there are such requirements, it is recommended to wear other types of straps. After use in seawater, it is recommended to rinse slowly with clean water and dry it. The waterproof function is not permanent and the waterproof performance may decrease due to daily wear) Dimensions: 43.45x24.54x8.99mm Weight: about 14 g (excluding strap) Pixels: 194x368 Suitable wrist circumference: 130210 mm Strap width: 16mm Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.