Band material: TPU Watch length: 250mm Screen size: 1.3" TFT-LCD Screen cover: 2.5D high hardness glass Touch screen: Full screen touch Waterproof grade: IP68 Accelerometer sensor: STK8321 Heart rate sensor: HX3600 Flash memory: 64MB Vibrating motor: Button motor Bluetooth connection: BLE4.2, supports BLE5.0 Power supply: - Rated voltage: 3.8V - Maximum battery power: 0.24W - Battery capacity: 210mAh - Battery type: Polymer lithium battery Charging interface: Contact type Charging method: - Magnetic suction charging (includes USB charging cable and charging spring pin) - Contact charging (2 electrode points) Charging time: Approximately 2.5 hours Battery life: Up to 10 days Standby time: Up to 45 days Functions: - 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, play/pause, next/previous 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 12/24-hour format - Multiple watch dials: Selectable directly on device Wearing experience: - Skin-friendly, lightweight design - Ergonomic housing - Strap is dirt-resistant and allows for easy ventilation and sweat dissipation Interactive experience: - Simple and intuitive operation - Clear and easy-to-understand UI focused on data display - Dynamic motion effects and scientific visual design enhance user experience Environmental specifications: - Operating temperature: -20°C to 40°C - Operating humidity: 10% to 90% RH (non-condensing) - Storage temperature: -20°C to 50°C