Go sleek with the GMD-B300SC-2DR — where compact design meets smart performance.
Sporty, modern, and designed for everyday versatility, the GMD-B300SC-2DR features a refreshing blue tone with a slim, lightweight profile that fits comfortably on smaller wrists. Built with the signature durability of G-SHOCK, this model combines fitness-focused functionality with Bluetooth® connectivity, making it perfect for an active, connected lifestyle.
Dial: Digital display with high-contrast layout for clear readability
Case Diameter (L × W × H) MM: 46.4 × 43.8 × 12
Case Material: Resin
Bracelet: Resin band (Blue)
Construction: Shock resistant
Power supply and battery life: Approx. 2 years on CR2016
Glass: Mineral glass
Gender: Women / Unisex
Water-Resistance: 200-meter water resistance
Smartphone Link / Connectivity
Bluetooth® connectivity via CASIO WATCHES app
Auto time adjustment
Easy watch settings
World time (300+ cities)
Step count data transfer
Phone finder
Fitness & Activity Features
Step counter using 3-axis acceleration sensor
Daily step goal display
Step count graph (hourly)
Calorie estimation
World Time
Dual time (home city time swapping)
Watch Features
Stopwatch:
1/100-second stopwatch
Measuring capacity: 00'00''00~59'59''99
Timer:
Countdown timer
Measuring unit: 1 second
Countdown range: 60 minutes
Alarm/hourly time signal:
5 daily alarms
Hourly time signal
Light
LED backlight
Selectable illumination duration, afterglow
Light color: LED: White
Calendar: Full auto-calendar (to year 2099)
Mute feature: Button operation tone on/off
Accuracy: ±15 seconds per month (without mobile link)
Other features
12/24-hour format
Airplane mode
Vibration alert
Regular timekeeping:
Digital: Hour, minute, second, pm, month, date, day
