Description <br> Versatile Smart Ring: This smart ring supports multiple sports modes and provides real-time heart rate monitoring. Simply tap to display your last reading and initiate new tests, making it an essential companion for fitness enthusiasts. <br> Comprehensive Health Monitor: With advanced features like sleep tracking and blood oxygen measurement, this health monitor offers detailed into your well-being. Tap to view sleep duration and blood oxygen levels, ensuring you stay informed about . <br> Innovative Health Fitness Rings: These health fitness rings seamlessly integrate for for WeChat and for Health, allowing you to track your steps and sync with your favorite health apps. Enjoy multilingual app support for a personalized fitness journey. <br> Dynamic Sport Health Ring: Experience the of interaction with this sport health ring, which enables gesture controls and other apps. Effortlessly browse videos, scroll pages, and shop online without touching your phone screen. <br> Convenient Sleep Ring: Capture perfect moments with the sleep rings remote photo-taking feature. A simple gesture triggers the camera, allowing you to take stunning selfies and photos with ease, elevating your photography experience. <br> <br> Thickness: 2.5mm <br> Weight: about 3.4g <br> Waterproof: 5ATM waterproof, can be worn for diving or snorkeling, supports waterproof depth of more than 50 meters <br> Body storage capacity (ROM RAM): 128kb ROM 96 Kb RAM <br> Sensor: SC7A20 <br> Bluetooth-Compatible version: 5.1 <br> Support APP-side GPS data: Yes <br> Battery type: polymer pure cobalt battery <br> Working temperature: 0-50 <br> Battery capacity: 18mah <br> Charging time: 2 hours <br> Theoretical standby time: 16 days-20 days <br> Usage time: 3 days-4 days <br> Charging: Charging box <br> Compatible software: <br> Support OTA (OTA upgrade): Support Fota upgrade <br> Size:D:#9 (inner diameter 19.0mm) <br> Colour:As Shown <br> Material:ABS <br> <br> Package Contents: <br> 1 * tracker <br> 1 * charging case <br> <br> Only the above package content, other products are not included. <br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. <br>