Band material: TPUWatch length: 250mmScreen size: 1.3" TFT-LCDScreen cover: 2.5D high hardness glassTouch screen: Full screen touchWaterproof grade: IP68Accelerometer sensor: STK8321Heart rate sensor: HX3600Flash memory: 64MBVibrating motor: Button motorBluetooth connection: BLE4.2, supports BLE5.0Power supply:- Rated voltage: 3.8V- Maximum battery power: 0.24W- Battery capacity: 210mAh- Battery type: Polymer lithium batteryCharging interface: Contact typeCharging method:- Magnetic suction charging (includes USB charging cable and charging spring pin)- Contact charging (2 electrode points)Charging time: Approximately 2.5 hoursBattery life: Up to 10 daysStandby time: Up to 45 daysFunctions:- Step monitoring: Supported- Heart rate monitoring: 10 x 24-hour continuous monitoring, including dynamic heart rate- Sleep monitoring: Supported (sleep data displayed on app, including deep sleep, light sleep, and awake periods)- Calories monitoring: Supported (displayed on both watch and app)- Data viewing: Step count, calories, speed, distance, active time; exercise calendar viewable on watch with storage of last 50 exercise records- Sports modes: 8 built-in modes (total of 9 available); app allows selection of walking, running, hiking, cycling, treadmill, fitness, mountaineering, dynamic bicycle, and yoga- Daily goal tracking- Call reminder- Message reminder- Sedentary reminder- Alarm clock reminder (customizable intervals; icons for wake-up, medication, work, etc.)- Stopwatch- Timer- Remote call hang-up support- Information bar on watch: Yes (customizable reminder intervals)- Music control: Supports opening music app, playpause, nextprevious track- Find phone function: Supported- Breathing training: Supports guided breathing to help relax- Power-off and restart: Supported via watch interface- Time and date display: Shows steps, calories, and battery level; supports 1224-hour format- Multiple watch dials: Selectable directly on deviceWearing experience:- Skin-friendly, lightweight design- Ergonomic housing- Strap is dirt-resistant and allows for easy ventilation and sweat dissipationInteractive experience:- Simple and intuitive operation- Clear and easy-to-understand UI focused on data display- Dynamic motion effects and scientific visual design enhance user experienceEnvironmental specifications:- Operating temperature: -20C to 40C- Operating humidity: 10% to 90% RH (non-condensing)- Storage temperature: -20C to 50C