Characteristics Blood oxygen sensor: Yes Recommended activity Skiing Rowing Running Bicycle Swimming Golf Calendar: Yes Advanced Training: Yes Activity tracker: Yes Electric compass: Yes Accelerometer: Yes Stopwatch: Yes Weather forecast: Yes Timer: Yes Heart rate data transmission: Bluetooth/ANT+ Barometer: Yes Ambient light sensor: Yes Calories burned: Yes Activity monitoring: Yes Heart rate monitor: Yes Heart rate sensor type: Optical Thermometer: Yes Alarm: Yes Built-in tape measure: Yes Music control: Yes Gyroscope: Yes Sleep quality: Yes Heart rate-based calorie calculation: Yes Distance traveled: Yes Personal Goals: Yes Smart notifications: Yes Find my phone: Yes Design Strap color: White Watch case color: White Strap material: Silicone Housing material: Aluminum, Polymer Suggested gender: Unisex Lens material: Glass Watch case size: 42 mm Band size: One size Water resistance: 5 ATM Wrist size: 125 - 190 mm Buckle color: White Shape: Round Market positioning: Sports watch Security features: Waterproof Power Battery operation time: 264 h Battery life: 11 days Battery life (in GPS mode): 21 h Supported battery type: Built-in Weight and dimensions Product weight: 23 g Product dimensions (WxDxH): 42.2 x 42.2 x 11.1 mm Thickness: 1.11 cm Strap width: 2 cm Tape weight: 13 g Product depth: 42.2 mm Product width: 42.2 mm Working conditions Temperature range (operation): -20 - 60 °C Network BeiDou: Yes GLONASS: Yes Mobile Network Generation: Not Supported Mobile network connectivity: No Galileo: Yes ANT+ available: Yes Quasi-Zenith Satellite System (QZSS): Yes GPS: Yes Efficiency Flash memory: 8 GB Package contents User Manual: Yes Charger: Yes Display Screen diagonal: 1.2 Resolution: 390 x 390 px Glass type: Corning Gorilla Glass 3 Color display: Yes Display type: Digital Display technology: AMOLED Touchscreen: Yes Ports and interfaces Bluetooth: Yes Headphone plug: Bluetooth USB port: No Wi-Fi: Yes