TECHNOLOGY: High-rigidity carbon material protects against impact and vibrations 200 meter water, mud and shock resistant construction withstands the toughest environments Metal button pipes ensure a tighter seal against external atmosphere Double LED display shows information in crystal clear quality under in any lighting condition Quad Sensor capabilities pack compass, altitude/barometer, and temperature measurements G-SHOCK app automatically records altitude data measured by the watch and route information acquired by a smartphone's GPS Battery Life: Approx. 2 years on CR2025 Manual memory measurements: up to 14 records including altitude, date and time USES: Track your steps with a 3-axis acceleration sensor step counter Track your times with a 1/100 second stopwatch SPECIAL FEATURES: BLE time sync 5 daily alarms Countdown timer Full auto-calendar World time Hourly time signals Power saving mode conserves battery life when not in use Barometric pressure tendency information alarm Atmospheric pressure tendency graph BLUETOOTH(R) connection TECHNOLOGY: High-rigidity carbon material protects against impact and vibrations 200 meter water, mud and shock resistant construction withstands the toughest environments Metal button pipes ensure a tighter seal against external atmosphere Double LED display shows information in crystal clear quality under in any lighting condition Quad Sensor capabilities pack compass, altitude/barometer, and temperature measurements G-SHOCK app automatically records altitude data measured by the watch and route information acquired by a smartphone's GPS Battery Life: Approx. 2 years on CR2025 Manual memory measurements: up to 14 records including altitude, date and time USES: Track your steps with a 3-axis acceleration sensor step counter Track your times with a 1/100 second stopwatch SPECIAL FEATURES: BLE time sync 5 daily alarms Countdown timer Full auto-calendar World time Hourly time signals Power saving mode conserves battery life when not in use Barometric pressure tendency information alarm Atmospheric pressure tendency graph BLUETOOTH(R) connection