Comprehensive Health Monitoring: Equipped with ECG, SpO2, heart rate, and body temperature sensors for comprehensive health tracking Advanced Fitness Tracking: Features 20+ sport modes, automatic step counting, and detailed metrics including calories, distance, and pace Sleep Analysis: 24/7 sleep tracking with detailed sleep stage analysis, including REM detection and sleep monitoring Bluetooth Calling: Supports Bluetooth 5.3 for hands-free calling directly from your wrist Long Battery Life: 250mAh battery provides 5-7 days of regular use and 20+ days on standby Specifications: Model: GE50 Physical dimension: 45*30*11mm APP: H Band CPU: JL7013A Blood oxygen chip: VP556ER blood oxygen heart rate + analog front end ECG chip: VP556ER Optoelectronic chip: VP556ER Heart Rate (Dynamic accurate dual PD Heart rate Acquisition) Flash: 128Mb Acceleration sensor: HR|ECG|Spo2-VP556ER Gyroscope sensor: KXTJ3-1057 (Acceleration + Gyroscope) BT: Bluetooth LE 5.3 Charging mode: Magnetic charging Waterproof: IP67 Battery capacity: 3.8V 250mAh polymer battery Usage time: 5-7 days Standby time: 20-30 days Frame material: Zinc alloy plating process Bottom shell material: PC+ABS+ Medical 316 steel sheet Band material: Silicone