Characteristics Blood oxygen sensor: Yes Tension Monitoring Function: Yes Automatically adapts training program: Yes Smart notifications: Yes Heart rate measurement Manual Automatic Stopwatch: Yes Interval training: Yes Music control: Yes Activity monitoring: Yes Training Recommendations: Yes Blood pressure monitor: Yes Suggested Rest Time: Yes Race Predictor: Yes Heart rate contact sensors: Yes Measurement of training effectiveness: Yes Virtual Partner Feature: Yes Running dynamics: Yes Find my phone: Yes Remote photo taking: Yes Weather display: Yes Activity Tracker: Yes Sun and Moon Information: Yes Alarm: Yes Call notifications: Yes Remote audio playback: Yes Electric compass: Yes Thermometer: Yes Sleep quality: Yes Barometer: Yes Training programming: Yes Automatic daily activity detection: Yes Calendar: Yes Pedometer: Yes Calories burned: Yes Ambient light sensor: Yes Accelerometer: Yes Heart rate monitor: Yes Gyroscope: Yes Workout tracking function: Yes Personal Goals: Yes Distance traveled: Yes Timer: Yes Design Watch case color: Gray Housing Material: Fiber Reinforced Plastic (FRP), Stainless Steel Watch case size: 51 mm Strap material: Silicone Water resistance: 10 ATM Lens material: Glass Strap color: Black Wrist size: 127 - 210 mm Market positioning: Sports watch Shape: Round Power Solar Powered: Yes Battery life: 37 days Supported battery type: Built-in Weight and dimensions Product width: 51 mm Thickness: 1.49 cm Product depth: 51 mm Product weight: 96 g Network Galileo: Yes GLONASS: Yes GPS: Yes Efficiency Support for mobile operating systems iOS Android Flash memory: 32 GB Display Color display: Yes Glass type: Power Glass Resolution: 280 x 280 px Touchscreen: Yes Screen diagonal: 1.4 Display technology: MIP Display type: Digital Ports and interfaces NFC: Yes Bluetooth: Yes Wi-Fi: Yes Safety warning Warnings Avoid prolonged contact with water to prevent damage to the device. The watch battery should not be replaced by unauthorized personnel. If the battery is depleted, contact an authorized service center. Do not expose the product to extreme temperatures or direct sunlight.