1.Daily Activity Monitoring: Track your steps, distance, and calories with using our smart ring. Keep your day-to-day fitness goals in check effortlessly. 2.Comprehensive Health Management: Monitor vital health indicators like heart rate, blood oxygen levels, and more with our health tracker to optimal well-being. 3.Touch Functionality: Easily change display features and change font orientation with a single touch on the health ring, designed for user-friendly operation. 4.Display Efficiency: View time, steps, heart rate, and battery life seamlessly on our fitness tracker ring for comprehensive daily . 5.Additional Features: Utilize remote photo capture, ring finder, gesture control, games, and menstrual cycle tracking with our health monitor for enhanced functionality. Compatible System: For Android 5.1 (inclusive) and above, for IOS 8.0 (inclusive) and above FLASH memory: RAM 104KB FLASH 512KB BT: 5.2 low-power BT chip Sensor: LIS2DOC Heart Rate: HX3918 Battery type: polymer lithium ion Capacity: 15mAh (18mAh for No. 11 and above) Waterproof Level: 1ATM Ring charging time: about 1.5 hours Life time: 5- of use, 15 days of standby Color: C:Silver Material: Alloy Package Contents: 1 x smart ring Only the above package content, other products are not included. 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.