Apple Watch Ultra 3 Condition: Used, like new and clean. Battery: 100% Warranty: 7 months remaining Scratches: Free of scratches Display: Always-On Retina OLED display, 49mm (422x514 pixels), with brightness up to 3000 nits. Processor: New S10 chip (dual-core) provides high responsiveness. Battery: Longest battery life in Apple Watches: up to 42 hours of normal use, and 72 hours in power-saving mode. Case and Materials: Made from 100% recycled titanium (natural or black titanium) with sapphire crystal. Health and Fitness: Advanced sensors: Body temperature measurement, heart rate, blood oxygen saturation (SpO2), and ECG. New features: Blood pressure elevation detection, sleep apnea alerts, "Vitals" feature for monitoring vital signs. Sports: Accurate dual-frequency GPS, training load metrics, water-resistant up to 100 meters (suitable for diving up to 40 meters). Connectivity and Other Features: 64GB internal storage. UWB chip (2nd generation) for precise finding. Cellular connectivity support (4G/5G). Customizable Action Button. Hand gestures (Double tap) for watch control.