Impact-resistant structure *Shock resist Training function *Calculate and display distance, speed, pace, etc. from mobile phone GPS or accelerometer Mobile link function *Automatic Connection, function interlocking with Bluetooth communication with compatible mobile phones World time * Time display for 38 cities (38 time zones *, with automatic summer time setting function) + UTC (Coordinated Universal Time) * May be updated when connected to a mobile phone. Stopwatch * 1 second, 100 hour meter, with split Timer * Timer for interval measurement that can set up to 5 times (set unit: 1 second, maximum set: 60 minutes, measurement in 1 second units, auto repeat) 4 time alarms (with snooze function) LED backlight *With auto light, super illuminator, afterglow function, and afterglow time switching (1.5 seconds/3 seconds) Light color *LED: White Training log data *Up to 100 runs and 140 lap data each: measurement time, distance, pace, calories burned Life log data * Daily data display number of steps, Monthly data display Mileage Operation sound ON/OFF switching function 12/24 hour display switching From G-SHOCK's sports line "G-SQUAD", the GBD-100 and GBD-200, which incorporate a design that imaged training in the night scene, have appeared.