Green Lion Fit Wear Smart Fitness Band - Designed with a lightweight nylon wristband for maximum comfort during daily wear and sports activities. Powered by the NRF54L15 chipset with advanced HX3697 heart rate sensor and 6-axis ST LSM6DSOETR3 sensor for accurate health and motion tracking. The 110mAh battery delivers 7–10 days of working time and up to 30 days standby for long-lasting performance. With Bluetooth V6.0 BLE, it ensures fast and stable connectivity with iOS and Android devices. 5ATM waterproof protection makes it suitable for swimming, workouts, and all-weather use.