Case / bezel material: Resin / Stainless steel Carbon fiber insert Resin Band Mud Resistant Shock Resistant Sapphire Glass with non-reflective coating 200-meter water resistance LED backlight (Super illuminator) Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow Solar powered Power Source Solar powered system (solar-charging system), charging system compatible with wireless chargers (requires device with Type-A USB terminal) Low-temperature resistant (20C/4F) * Low-temperature resistance guarantees operation of the watch display only. It does not apply to operation of GPS, sensors or other functions. GPS signal reception: Auto receive (time information, once/day); Manual receive (position information, time information) GPS Navigation Activity logs (up to 20 logs), track display (wide area map/magnified map switching), start-to-destination direct distance, bearing to destination, destination setting from Point Memory recordings, backtrack, activity time measurement, log use status Mobile link (Wireless linking using Bluetooth) Point Memory Up to 60 sets of point data (time, date, longitude/latitude, altitude, atmospheric pressure, temperature), point icons Digital compass Measures and displays direction as one of 16 points Measuring range: 0 to 359 Measuring unit: 1 60 seconds continuous measurement Bidirectional calibration and magnetic declination correction Bearing memory (records and display one set of degree and direction) Graphical display of north Auto horizontal compensation Altimeter Measuring range: 700 to 10,000 m (2,300 to 32,800 ft.) Measuring unit: 1 m (5 ft.) *Changeover between meters (m) and feet (ft) Barometer Display range: 260 to 1,100 hPa (7.65 to 32.45 inHg) Display unit: 1 hPa (0.05 inHg) Atmospheric pressure tendency graph Barometric pressure tendency information alarm (beep and arrow indicates significant changes in pressure) *Changeover between hPa and inHg Thermometer Display range: 10 to 60C (14 to 14