GPS Assisted Smart Watch Global positioning system Breath training8 Sport ModesIndoor and Outdoor swimming modes (50m waterproof)24H heart rate detection Cloud Dial,Custom Dial 5ATM waterproofChip: NRF52840Screen Size: 1.3"Screen Resolution: 240x240Battery: 210mAhMaterials: PC+SiliconeWaterproof rating: 5Atm