Description Features Daily Stress Wellness Check Message/Call Alert Supports daily use and during training Sleep with REM tracking Alarm Timer Stopwatch Daily Alerts Include active calories, exercise time, storm and more alerts Updateable Firmware with Wi-Fi and the COROS app Find My Phone/Watch Always-On Display HRV Music: Plays offline music when paired with supported Bluetooth headsets Specifications 46mm 42mm Dimensions 46.2 x 46.2 x 13.7mm Height does not include the optical heart rate sensor 42.6 x 42.6 x 14mm Height does not include the optical heart rate sensor Weight 64g with silicone band 51g with nylon band 56g with silicone band 44g with nylon band Display Size 1.3 inches 1.2 inches Display Resolution 260 x 260 pixels 240 x 240 Display Type 3rd Generation Memory-in-Pixel touch screen 3rd Generation Memory-in-Pixel touch screen Watch Band Width 24mm 22mm Watch Band Size - Nylon 140mm - 215mm 135mm - 205mm Watch Band Size - Silicone 140mm - 215mm 135mm - 205mm Watch Band Installation Type Quick Release Quick Release Endurance All Systems (GPS, GLONASS, Galileo, Beidou, QZSS) 65 hours 17 hours with offline music playing 41 hours 11 hours with offline music playing High All Systems (GPS, GLONASS, Galileo, Beidou, QZSS) 53 hours 16 hours with offline music playing 34 hours 10 hours with offline music playing Max Dual Frequency (GPS, GLONASS, Galileo, Beidou, QZSS) 41 hours 15 hours with offline music playing 26 hours 9 hours with offline music playing Daily Use & Sleep Tracking 24 days 15 days Charging Time Less Than 2 Hours Less Than 2 Hours Materials: Screen - Sapphire Glass, Bezel - Grade 5 Titanium Alloy, Cover - Fibre Reinforced Polymer, Band - Silicone Nylon Buttons and Dials: Digital Dial, Back Button, Action Button Connectivity: Phone - Bluetooth, Accesories - Bluetooth, Data - Wifi/Coros App Working Temperature: -4°F to 122°F (-20°C to 50°C) Storage Temperature: -4°F to 140°F (-20°C to 60°C) Water Resistance: 5 atm Internal Memory: 32gb Activity Memory: 1200 hours Satellite Systems: GPS, GLONASS, Galileo, Beidou, QZSS GNSS Chipset: All-Satellite Dual-Frequency
