*1.3" screen (240x240 pixels) *Reinforced glass *Heart rate monitor function *Waterproof (IP67): up to 1m *Compatible with iOS 10+ and Android 5.0+ versions *Optimized for use with the most popular sports *USB charger *Battery standby time: up to 20 days * Battery life with active use: up to 5 days *Also works as a smartphone camera remote control