Ringconn 2 Ring Ringconn 2 air Only opened the box for testing. Design and Materials: Made of titanium and medical-grade epoxy, 2mm thick and 6.8mm wide. Battery Life: Battery lasts up to 10 days, with magnetic charging taking about 90 minutes. Health Tracking: Accurate monitoring of sleep (including sleep apnea), stress levels, heart rate (HR), and heart rate variability (HRV). Activity and Fitness: Tracks steps and workouts, with automatic detection for some activities. Water Resistance: IP68 resistance, allowing submersion up to 100 meters (10 ATM). Compatibility: Works with iOS 14.0+ and Android 8.0+ devices via Bluetooth 5.0. Storage: Has internal memory that stores data for 5-7 days. Color: Galaxy Silver Size: 9 Condition: New in box with all accessories.