Features: Magnetic charging can last for a long time Magnetic charging, a single full charge can last for 15 days in standby mode, and it can last for about 5-7 days under heavy use. Endurance and explosive power are online at the same time Meteorological data Keep an eye on air pressure changes and trends in weather data to predict sudden changes in the weather and plan for altitude sickness to help ensure a safe trip spin button Gently turn the "knob" to quickly switch dials or switch function menus, etc., bringing you a fast and smooth operating experience. Health tracking for fitness insights. Instant notifications for staying connected. Voice assistants for convenience. Stylish and customizable design. Item Number :Qw49 Compatible Platform :Android Product Weight :150G Operation Mode: Touch + Button Type Wireless Distance :5M Or Less Wrist Strap Material: Silicone Packing List: Host + Manual + Charging Cable Functions: Step Counting, Heart Rate Monitoring, Blood Pressure Measurement, Social Entertainment, Bluetooth Call, Smart Reminder, Remote Control Selfie, Sleep Monitoring Battery Life: Less Than 7 Days Charging Method: Wireless Charging Waterproof Grade: Life Waterproof Case Material: Plastic Screen Type :Tft Screen Strap Style: Sporty