[Advanced Health Monitoring]Equipped with heart rate, blood oxygen, and stress detection sensors for comprehensive health tracking. [Multi-Sport Modes]Supports various exercise modes, perfect for tracking different types of workouts and activities. [Waterproof Design]Rated for swimming and diving, allowing for worry-free use during water-based activities. [Long Battery Life]Enjoy 3-5 days of usage on a single charge, with a quick 2-hour recharge time. [Sleek Magnetic Charging]Features a convenient magnetic charging system for easy and secure power replenishment. [Dual Strap]Comes with two interchangeable straps, perfect for couples or those who prefer variety in style. [Smart Notifications]Receive alerts for calls, messages, and app notifications directly on your wrist. Specifications: CPU: OM6626B Material: Zinc alloy + Epoxy resin Bluetooth-compatible Version: 5.3 Battery: 18mAh Polymer Lithium with protection IC Working Time: 3-5 days Charging Time: 2 hours Sensors: SC7A20H (Accelerometer), HX3918 (Heart Rate) Waterproof Level: Suitable for swimming and diving Charging Requirement: 1A or below App Compatibility: Android 6.0+ and iOS 11.0+ App Name: Nx Wear Operating Temperature: 0~45℃ Storage Temperature: -10~55℃ Operating Humidity: 5%~95% (non-condensing) ESD Protection: Contact ±6KV, Air ±10KV Surge Protection: 12V