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