Feature: 1. Smart Ring for Women Men: Set daily exercise goals, 5000-10000 steps, record steps, kilometers, and calories anytime, and record the exercise trajectory on the APP. Suitable for different sports modes. 2. Magnetic Fast Charging: Sleep tracker ring uses quick charging, built in 18mAh lithium ion battery, long battery life. Real time battery level check available on the APP. Equipped with a charging case. 3. IP68 Water Resistant: No need to take off for washing, showering, swimming, etc. Water resistant fitness tracker ring can continuously observe body conditions during activities, unaffected by sweat. 4. Smart Chip: Smart ring fitness tracker with powerful computing power and floating point operating technology, achieve faster running speed, higher security, and longer transmission distance. 5. Stylish and Comfortable Design: Smart ring health tracker is made of Ti steel material, lightweight, stylish, comfortable, skin friendly. Smart ring is gradually becoming a must have in our daily life with its unique design and powerful features. Specification: Item Type: Smart Ring Health Tracker Material: Ti Steel Support: for Android 5.0 and above Bluetooth: BLE5.1 Water Resistant Level: IP68 Standby Time: 10-15 Days Charging Mode: Magnetic Charging APP: for Darings Bluetooth Distance: 3-5 Meters Ring Battery Capacity: 18mAh Lithium Ion Battery (Shipped With Built In Battery) Charging Case Battery Capacity: 300mah Lithium Ion Battery (Shipped With Built In Battery). Package List: 1 x Smart Ring Health Tracker1 x User Manual1 x Charging Case