Garmin Forerunner 255 4GB Slate Gray/Black 010-02641-10

Garmin Forerunner 255. Display diagonal 3.3 cm (1.3), Display technology MIP, Display resolution 260 x 260 pixels, Touchscreen. Flash memory 4 GB. Wi-Fi. GPS (satellite). Weight 49 g. Band material Silicone, Band colour Grey, Band size One Size
Ports & interfaces USB port N Wi-Fi Y Bluetooth Y Near Field Communication (NFC) N Headphone connectivity Bluetooth Design Market positioning Sport watch Watch case size 46 mm Watch case colour Grey Watch case material Carbon Fibre Reinforced Polymer (CFRP) Band colour Grey Band material Silicone Band size One Size Lens material Glass Shape Round Wrist size range 130 - 205 mm Buckle colour Black Waterproof Y Closure type Single prong strap buckle Protection features Water resistant, Waterproof Removable strap Y Water resistance 5 ATM Display Display type Digital Display resolution 260 x 260 pixels Touchscreen Y Display diagonal 3.3 cm Display technology MIP Always-on display Y Colour display Y Display diameter 3.3 cm Watch glass type Corning Gorilla Glass 3 Performance Built-in microphone N Built-in speaker(s) Y Built-in camera N FM radio N Flash memory 4 GB Features Heart rate monitor Y Heart rate contact sensors Y Heart rate sensor type Optical Heart rate measuring Automatic Blood oxygen sensor Y Distance travelled Y Pedometer Y Calories burned Y Accelerometer Y Gyroscope Y Activity tracker Y Multisport mode Y Personal goals Y Quality of sleep Y Clock mode 12h/24h Smart notifications Y Weather display Y Calendar notifications Y SMS notifications Y Timer Y Electronic compass Y Music player Y Audible alarm(s) Y Barometric altimeter Y Alarm clock Y Calendar Y Stopwatch Y Time/distance alert N Interval training Y Heart rate-based calorie computation Y Advanced workouts Y Weather forecast Y Heart rate data transfer Bluetooth/ANT+ Automatic daily activity detection Y Recommended activity Climbing, Cycling, Diving, Fitness, Golf, Running, Swimming Activity monitoring Y Music control Y Virtual partner function Y Call notifications Y Barometer Y Thermometer Y Network Mobile network connection N ANT+ enabled Y GPS (satellite) Y GLONASS Y Galileo Y Weight & dimensions Width 45.6 mm Depth 45.6 mm Thickness 1.29 cm Weight 49 g Power Battery life (max) 30 h Battery life 14 day(s) Standby time (Bluetooth off) 25 h Battery life (GPS mode) 16 h