Introducing the GBD-300 series, part of G-SHOCK's sports line G-SQUAD, which supports active users.
The GBD-300 is equipped with functions that are useful for running and other training, such as an accelerometer, distance measurement function, smartphone connectivity, and a high-definition display.
Corrects distance measurements by linking with the smartphone's GPS function
After the calibration, the watch will be able to measure the distance traveled more accurately.
Equipped with an auto-lap function that automatically measures running pace and time.
In addition, the G-SHOCK MOVE app visualizes your life log and activity history, allowing you to intuitively check your exercise records.
The display uses high-definition MIP liquid crystal and a super illuminator.
The watch also has an auto light function that turns on when you tilt your arm while running, making it easy to see at night.
The reverse slant shape of the case sides gives it a slim, sleek design.
The band is made of soft urethane material for a better fit, and the band holes are spaced 5mm apart, allowing for precise length adjustment.
The soft urethane and movable back protector allow for flexible adjustments to fit a variety of wrist sizes and arm movements.
The main resin parts, such as the case and band, are made from environmentally friendly "biomass plastic."
In addition, it has a vibration alarm function that not only alerts you to the elapsed time and calories burned during training, but also allows you to receive phone calls, emails, and social media notifications from your smartphone.
G-SQUAD is useful for a wide range of purposes, from daily health management to improving running endurance.
・ Distance measurement correction function linked to the smartphone's GPS function
・ Running measurement function that can measure distance, speed, pace and calories burned in addition to time measurement
・ Step tracker that automatically counts steps as soon as you start walking
・ Multi-timer useful for interval training
・ Lap memory Training measurement function that supports up to 140 laps x 100 runs
・ Training management function (achievement, history, plan) using a dedicated smartphone app
・ High-brightness auto LED backlight (Super Illuminator)
・ Soft urethane band with excellent fit
・ Step count measurement, notifications
・ Shock-resistant construction
- 20 ATM water resistance
Training functions: Distance, speed, pace, etc. calculated and displayed using an acceleration sensor, automatic/manual lap function, auto pause function, reach notification alert settings (time, calories burned) ON/OFF switching function, training display customization function (measurement time, distance, pace, lap time, lap distance, lap pace, average pace, speed, average speed, calories burned)
Training log data (up to 100 runs, up to 140 lap data each): measured time, distance, pace, calories burned
- Life log data: <Daily data display> Number of steps, <Monthly data display> Distance traveled
- User profile setting function
- Mobile Link function (Automatic Connection, function linkage via Bluetooth® communication with compatible mobile phones)
・ Vibration function
World time: 38 cities (38 time zones*, daylight saving time automatic setting function) + UTC (Coordinated Universal Time) time display * May be updated by connecting to a smartphone

Stopwatch (1 second, 100 hour, split)
Timer: Interval measurement timer with up to 5 time settings (set unit: 1 second, maximum set: 60 minutes, measurement in 1 second units, auto repeat)
- 4 time alarms (with snooze function)
- Power saving function (display turns off at a certain time each day to save power)
- Fully automatic calendar - 12/24 hour display switching
Airplane mode
- Operation sound ON/OFF switching function
- Operation vibration ON/OFF switching function
LED backlight (with auto light, super illuminator, afterglow function, afterglow time switching (1.5 seconds / 3 seconds)) * When not linked to a smartphone, it operates with normal quartz accuracy (average monthly difference of ±15 seconds)