System Requirements: Android 4.4 or later, iOS 9.0 or later
Bluetooth: Bluetooth 5.1, BLE / BR / EDR
Battery Life: 14 days for typical use.(The typical usage scenarios are decided based on the user habits. The specific battery life depends on the user habits and usage frequency) Charger Voltage and Current Requirements: 5V 0.5A / 1A / 1.5A / 2A
Water Resistance: 5 ATM water-resistant Devices complying with the 5ATM-rated water have a water resistance rating of 50 meters under ISO standard 22810:2010. This means that they may be used for shallow-water activities like swimming in a pool or ocean. However, they should not be used for scuba diving, waterskiing, or other activities involving high-velocity water or submersion below shallow depth.