Feature:1. INTELLIGENT ACTIVITY TRACKING: It connects seamlessly to your phone, providing real time tracking of your activity data, including exercise modes, distance, workout duration, calories burned, and step count to help you reach your daily goals.2. BLUETOOTH CONNECTION: Simply connect the ring to your phone via Bluetooth, keeping it enabled for automatic pairing when you launch the app. Even without a connection, the ring can independently record your body data and sync updates once reconnected.3. EXTENDED BATTERY LIFE: Featuring a powerful magnetic coil, this ring allows for efficient charging that takes about just one hour, providing a long standby time of up to 7 days.4. IP68 WATER RESISTANT: With an IP68 water resistant rating, it is not afraid of being worn during showers, swimming, and handwashing, ensuring you can wear it without concerns.5. LIGHTWEIGHT AND COMFORTABLE: Crafted from stainless steel, this ring combines minimalist design with durability, making it both stylish and comfortable for all day wear in any situation.Specification:Item Type: Smart RingMaterial: Stainless SteelRing Battery Type: Li Battery, Capacity: 20mah (Built in)APP: For Smart Health.Package List:1 x Smart Ring1 x Instruction Manual1 x Charging CableNote:Proper Wearing: Wear the optical sensor in close touch with the skin of your finger to guarantee the accuracy of the data.