【1.96 Inch AMOLED HD Display】Features a stunning 1.96-inch AMOLED touchscreen with 410×512 resolution, delivering vibrant colors and crystal-clear visuals for an exceptional viewing experience. 【24/7 Health Monitoring】Equipped with C30F-S high-precision biosensor for continuous heart rate and blood oxygen monitoring, providing real-time health insights and comprehensive wellness tracking. 【100+ Professional Sports Modes】Built-in STK8325 accelerometer supports over 100 sports modes including running, cycling, swimming, and more, accurately recording workout data and calories burned. 【Bluetooth-compatible Calling】Features 0815 speaker and anti-interference 4015 microphone for crystal-clear hands-free calls directly from your wrist, keeping you connected during workouts or busy moments. 【IP68 Waterproof & Durable Build】Premium zinc alloy and stainless steel construction with IP68 water and dust resistance, perfect for swimming, showering, and all-weather activities. Specifications: Model: SW04 Screen Size: 1.96 inch AMOLED Screen Resolution: 410×512 Chip: M4F, 128MHz + DSP, 192MHz Memory: SRAM 481KB + PSRAM 4MB + Flash 128Mb Material: Zinc Alloy + PC + Encapsulated Heart Rate Lens + Stainless Steel Bluetooth-compatible Version: 5.3 Dual Mode Battery Capacity: 300mAh 3.8V Lithium Polymer Charging time: 2-3 Hours Heart Rate Sensor: C30F-S (24H Heart Rate/Oxygen) G-Sensor: STK8325 Accelerometer Vibration: Flat Motor 0827 Charging Method: Magnetic Charging Speaker: 08×15 Speaker Mic: Strong Anti-interference 4015 Waterproof level: IP68 Sport modes: 100+ Professional Sports Modes Compatible system: iOS 9.0 Above / Android 5.0 Above Product Size: 48×38×11.5 mm Package included 1 x Smart Watch 1 x English User Manual Specifications Brand Ldnio Certificate CE-EMC,CE-RED ColorStyle A Packaging Type Paper Box Plug Type (For Supply) N/A User Manual (Language) English Gross Weight 0.302kg Volume Weight 0.260kg Package Length 13.200cm Package Width 13.100cm Package Height 6.700cm