Feature: 1. High-Clear Large Screen: Adopt a 1.47" TFT full-screen design with a resolution of 172x320P, the display effect is delicate. Equipped with a light sensor, the screen brightness is automatically adjusted to make your viewing more comfortable. 2. High-Accuracy Sensor: The cutting-edge monitoring module can monitor exercise and health more accurately, and is very suitable for heart rate monitoring, blood oxygen monitoring, stress monitoring, female health management, etc. 3. 30+ Sports Modes: Stay motivated through premium algorithms, covering indicators such as oxygen consumption, recovery time, training results, load, etc. Whether you are riding outdoors or sweating indoors, you can track accurately. 4. 100+ Multiple Dials: Our smart band provides more than 100 personalized dials. Users can change the dial types according to preferences, moods, or daily wear to meet personalized needs or set the photo in the album as the dial. 5. Long-Lasting & Fast-Charging: Under typical use mode, the watch has a lifespan of 14 days, and even in heavy use mode, it can maintain a battery of 6 days. Magnetic charging, one-touching charging, convenient and fast charging process. Specification: Model: M2225B1 Structure: TPU+PC+Glass Screen: 1.47" TFT Resolution: 172*320, PPI 247 Brightness: Maximum Over 450nits Sensor: Accelerometer, optical heart rate sensor Wireless Connection: BT BLE5.1 Battery capacity: 210mAh Waterproof level: 5ATM Adjustable wristband length: 135-215mm Supported system: Android6.0 or iOS12.0 and above Item Size: 6 * 2.8cm/2.36 * 1.1in Item Weight: 27g/0.95oz Package Size: 10.2 * 10 * 3.9cm/4.02 * 3.94 * 1.54in Package Weight: 66g/2.33oz Package List: 1*Smart Band 1*Charging Cable 1*User Manual