A used watch, 6 months of very clean use. The watch is clean. Screen: Wide 2.0-inch LCD screen, scratch-resistant for durability and maintaining its elegant appearance. • Connectivity: Supports Bluetooth calls with dual-microphone technology for ambient noise cancellation. • Battery: Exceptional efficiency of up to 18 days of continuous use on a single charge. • Health & Fitness: Tracks over 140 sports modes with intelligent 24/7 monitoring of heart rate and blood oxygen (SpO2). • System: Runs on Xiaomi HyperOS for smooth performance and full compatibility with various smartphones. • Durability: Water-resistant up to 5 ATM pressure.