Characteristics Thermometer: Yes Calories burned: Yes Stopwatch: Yes Workout tracking function: Yes SMS notifications: Yes Heart rate monitor: Yes Music control: Yes Sun and Moon Information: Yes Fitness Test: Yes Gyroscope: Yes Calendar: Yes Accelerometer: Yes Alarm: Yes Ambient light sensor: Yes Smart notifications: Yes Find my phone: Yes Measurement of training effectiveness: Yes Distance traveled: Yes Activity monitoring: Yes Advanced Training: Yes Call notifications: Yes Music playback: Yes Heart rate measurement Automatic Manual Interval training: Yes Training Recommendations: Yes Sleep quality: Yes Barometer: Yes Electric compass: Yes Timer: Yes Weather forecast: Yes Activity tracker: Yes Smart Awakening: Yes Calendar notifications: Yes Skin temperature sensor: Yes Blood oxygen sensor: Yes Tension Monitoring Function: Yes Design Market positioning: Smartwatch Strap material: Silicone Water resistance: 5 ATM Shape: Round Wrist size: 135 - 200 mm Housing material: Polymer, Stainless steel Watch case color: Silver Watch case size: 45 mm Power Supported battery type: Built-in Battery life: 12 days Battery operation time: 600 h Battery type: Lithium-ion (Li-Ion) Weight and dimensions Product depth: 45 mm Product weight: 38 g Thickness: 1.25 cm Product width: 45 mm Network ANT+ available: Yes GLONASS: Yes Quasi-Zenith Satellite System (QZSS): Yes Galileo: Yes GPS: Yes BeiDou: Yes Efficiency Built-in microphone: Yes FM Radio: No Built-in camera: No Built-in speakers: Yes Flash memory: 8 GB Display Display diameter: 3.53 cm Touchscreen: Yes Display technology: AMOLED Screen diagonal: 1.4 Color display: Yes Resolution: 454 x 454 px Display type: Digital Glass type: Corning Gorilla Glass 3 Ports and interfaces Headphone plug: No Bluetooth: Yes Wi-Fi: Yes NFC: No USB port: No