1、Lightweight Design: Made with aluminum alloy, durable, and elegant in appearance. Ultra lightweight ring for a comfortable wearing experience. Thin and light, you may even forget it's there. 2、All Day Sleep Monitoring: The smart ring health tracker automatically records your sleep patterns and quality, helping you understand your sleep condition and improve sleep quality. 3、Multiple Sports Modes: The smart ring supports multiple sports modes such as running, cycling, swimming, etc., helping you record real time sports data and achieve better fitness results. 4、Waterproof Design: The fitness tracker ring is made with waterproof materials, allowing you to easily engage in activities like handwashing and swimming without worrying about water damage. 5、Remote Camera Control: The smart ring comes with a remote camera control function, enabling you to control your phone's camera with the ring and easily capture wonderful moments. Item Type: Smart Ring Health Tracker Material: Aluminum Alloy Weight: Approx. 73.00g / 2.58oz Battery Type: Lithium Battery (Shipped with) Battery Model: 170725 Battery Capacity: 17mAh Product Size: Approx. 2.5x0.7cm / 1.0x0.3in 1 x Smart Ring Health Tracker 1 x USB Data Cable 1 x English User Manual