Characteristics Tension Monitoring Function: Yes Blood oxygen sensor: Yes Find my phone: Yes Barometer: Yes Recommended activity Hiking Bicycle Fitness Running Activity Tracker: Yes Sleep quality: Yes Auto pause: Yes Altimeter: Yes Heart rate measurement: Manual Virtual Partner Feature: Yes Running dynamics: Yes Real-time assistance: Yes Race Predictor: Yes Weather display: Yes Foot pod: Yes Sun and Moon Information: Yes Stopwatch: Yes Advanced Training: Yes Multisport mode: Yes Suggested Rest Time: Yes Timer: Yes Thermometer: Yes Distance traveled: Yes Electric compass: Yes Alarm: Yes Calendar: Yes Interval training: Yes Accelerometer: Yes Heart rate monitor: Yes Design Watch case size: 40 mm Watch case color: Camouflage Housing material: Polymer Water resistance: 10 ATM Band size: One size Lens material: Glass Suggested gender: Male Wrist size: 112 - 180 mm Shape: Round Market positioning: Smartwatch Strap material: Silicone Closure Type: Single Pin Buckle Strap Color: Camouflage Power Battery life (in GPS mode): 54 h Battery life: 50 days Weight and dimensions Strap width: 2 cm Thickness: 1.33 cm Product width: 40 mm Product weight: 42 g Product depth: 40 mm Network GLONASS: Yes GPS: Yes Galileo: Yes Efficiency Built-in camera: No Built-in speakers: No FM Radio: No Built-in microphone: No Package contents User Manual: Yes Charger: Yes Display Display size: 20 x 20 mm Glass type: Corning Gorilla Glass Screen diagonal: 0.79 Display type: Digital Touchscreen: No Resolution: 156 x 156 px Display technology: MIP Ports and interfaces USB port: No Bluetooth: Yes NFC: No Wi-Fi: No Safety warning Warnings Avoid prolonged contact with water to prevent damage to the device. Do not expose the product to extreme temperatures or direct sunlight. The watch battery should not be replaced by unauthorized personnel. If the battery is depleted, contact an authorized service center.