Features 1、Durable: Made with aluminum alloy and ceramics, durable, and elegant in appearance. The light, small bluetooth health tracker ring for all day continuous tracking, durable and adapt to most fingers. 2、IPX8 Protection: IPX8 certified dustproof and waterproof up to 100 meters, perfect for swimming, surfing, sailing, and deep sea diving. 3、Multiple Functions: This smart ring has various functions, including monitoring sleep, body temperature, health and fitness tracker and daily step count, allowing you to always observe your physical health. 4、Improved Features: This ring has a longer and more stable Bluetooth range. It also adds the feature of controlling phone camera, simply shake to take a successful photo. Additionally, it includes new functions such as stress monitoring, to monitor your body condition at any time. 5、Meaningful Gift: This ring is a meaningful gift, suitable for any occasion or holiday, including birthdays, anniversaries, Thanksgiving, Christmas, Hanukkah, or Valentine's Day. Item Type: Smart Health Ring Material: Aluminum Alloy, Ceramics, Electronic Components Battery Type: Lithium Ion Battery (Shipped With) Battery Capacity: 20mah Battery Life: Approx. 7 Days Charging Time: 45 Minutes Package List 1 x Smart Health Ring 1 x Charging Cable 1 x Instructions