Garmin Forerunner 255 Slate Gray watch

Characteristics Calories burned: Yes Accelerometer: Yes Thermometer: Yes Electric compass: Yes Calendar: Yes Personal Goals: Yes Interval training: Yes Heart rate monitor: Yes Gyroscope: Yes Alarm: Yes Distance traveled: Yes Audible alarm: Yes Timer: Yes Heart rate data transmission: Bluetooth/ANT+ Barometer Yes Pedometer: Yes Heart rate measurement: Automatic Heart rate sensor type: Optical Weather display: Yes Activity Tracker: Yes Heart rate-based calorie calculation: Yes Recommended activity Climbing Swimming Bicycle Fitness Diving Golf Running Heart rate contact sensors: Yes Time/Distance Alarm: No SMS notifications: Yes Weather forecast: Yes Automatic daily activity detection: Yes Watch mode: 12 h/24 h Sleep quality: Yes Activity monitoring: Yes Virtual Partner Feature: Yes Multisport mode: Yes Calendar notifications: Yes Smart notifications: Yes Blood oxygen sensor: Yes Music control: Yes Music playback: Yes Advanced Training: Yes Call notifications: Yes Stopwatch: Yes Design Strap color: Gray Strap material: Silicone Shape: Round Waterproof: Yes Wrist size: 130 – 205 mm Closure Type: Single Pin Buckle Market positioning: Sports watch Security Features: Waterproof, Water Resistant Buckle color: Black Band size: One size Detachable strap: Yes Water resistance: 5 ATM Housing material: Carbon fiber reinforced polymer (CFRP) Watch case color: Gray Lens material: Glass Watch case size: 46 mm Power Battery life: 14 days Battery operation time: 30 h Standby time (Bluetooth off): 25 h Battery life (in GPS mode): 16 h Weight and dimensions Product depth: 45.6 mm Thickness: 1.29 cm Product weight: 49 g Product width: 45.6 mm Network ANT+ available: Yes Galileo: Yes GLONASS: Yes Mobile network connectivity: No GPS: Yes Efficiency Built-in speakers: Yes Built-in camera: No Flash memory: 4 GB FM Radio: No Built-in microphone: No Display Screen diagonal: 1.3″ Display type: Digital Resolution: 260 x 260 px Touchscreen: No Display technology: MIP Color display: Yes Always-on display: Yes Glass type: Corning Gorilla Glass 3 Display diameter: 3.3 cm Ports and interfaces USB port: No Wi-Fi: Yes NFC: Yes Bluetooth: Yes Headphone plug: Bluetooth Safety warning Warnings Do not expose the product to extreme temperatures or direct sunlight. 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.