Characteristics Thermometer: Yes Heart rate monitor: Yes Training Recommendations: Yes Sleep quality: Yes Calories burned: Yes Stopwatch: Yes Calendar notifications: Yes Gyroscope: Yes Activity Tracker: Yes Smart Awakening: Yes SMS notifications: Yes Weather forecast: Yes Call notifications: Yes Advanced Training: Yes Activity monitoring: Yes Fitness Test: Yes Barometer: Yes Sun and Moon Information: Yes Music control: Yes Heart rate measurement Automatic Manual Smart notifications: Yes Electric compass: Yes Measurement of training effectiveness: Yes Timer: Yes Music playback: Yes Interval training: Yes Alarm: Yes Distance traveled: Yes Workout tracking function: Yes Calendar: Yes Find my phone: Yes Ambient light sensor: Yes Accelerometer: Yes Tension Monitoring Function: Yes Skin temperature sensor: Yes Blood oxygen sensor: Yes Design Market positioning: Smartwatch Shape: Round Strap color: Black Water resistance: 5 ATM Strap material: Silicone Watch case color: Black Wrist size: 110 - 175 mm Watch case size: 41 mm Housing material: Polymer, Stainless steel Power Battery type: Lithium-ion (Li-Ion) Supported battery type: Built-in Battery operation time: 432 h Battery life: 10 days Weight and dimensions Product width: 41 mm Product weight: 33 g Thickness: 1.2 cm Product depth: 41 mm Network GPS: Yes GLONASS: Yes Quasi-Zenith Satellite System (QZSS): Yes Galileo: Yes ANT+ available: Yes BeiDou: Yes Efficiency Flash memory: 8 GB Built-in microphone: Yes FM Radio: No Built-in speakers: Yes Built-in camera: No Display Resolution: 390 x 390 px Screen diagonal: 1.2 Touchscreen: Yes Glass type: Corning Gorilla Glass 3 Display type: Digital Display diameter: 3.04 cm Display technology: AMOLED Color display: Yes Ports and interfaces Wi-Fi: Yes Bluetooth: Yes USB port: No NFC: No Headphone plug: No