The Moon Smart Ring by Techmade is a sleek, elegant wearable made from high-quality materials for comfort and water resistance. Stay connected with smartphone integration. Elevate your lifestyle with the Moon Smart Ring. Technology: BT 5.0, G-Sensor, waterproof 5ATM. Battery: 20mAh Li-Polymer. Compatibility: Compatible with iOS 9.0 or higher, Android 5.0 or higher, and Harmony 2.0 or higher. Additional features: Slide/Swipe for social/photo/video presentation, emergency SOS, cardio tests, temperature, sleep monitoring (sleep quality control), sports, pedometer, calories, music remote control, menstrual report.