Feature: 1. Smart Ring Fitness Tracker: Smart ring health tracker records key data through advanced sensor to observe your health condition, helping you stay well at all times. The smart ring offers a comfortable wearing experience. 2. Ultra Light Design: Super lightweight body with a thin and comfortable wearing experience, you may even forget it's there. Comes with a charging case for outdoor use without worrying about battery life. 3. Multifunctional Smart Ring: The smart health ring has various health features, and it can track your sleep, body temperature, steps and other health data at any time, allowing you to observe your health status continuously. 4. IP68 Waterproof and Dustproof Level: Suitable for various daily water related scenarios such as handwashing, bathing, swimming, etc., and its various sensors can always observe your health data as usual. 5. Fashionable and Comfortable: This smart ring is lightweight, stylish, and comfortable to wear. Compatible for Android for IOS, the ring allows you to conveniently view the data anytime through the app. It makes a meaningful gift choice for any occasion or holiday, such as birthdays, anniversaries, Thanksgiving, Christmas, or Valentine's Day. Specification: Item Type: Smart Ring Health Tracker Material: Aluminium Alloy, Electronic Components, ABS Ring Battery Type: Lithium Battery, 28mAh (Shipped with) Ring Standby Time: about 5-7 Days Ring Charging Time: 45 Minutes Case Battery Capacity: Lithium Battery, 300mAh (Shipped with) APP: for JSRing. Package List: 1 x Smart Ring Health Tracker 1 x Charging Case 1 x Charging Cable 1 x User Manual