Introducing the latest G-SQUAD lineup from G-SHOCK, the GBD300-1D series sports watches feature smartphone linking and a high-definition display with a variety of training support functions. After linking with a smartphone's GPS for accurate distance measurement calibration, these watches maintain precise readings even when disconnected. An auto-lap function tracks pace and times automatically, while a smartphone app offers intuitive visual lifelog and activity history data. The MIP LCD with Super Illuminator ensures clear visibility, with an Auto Light feature activating in low-light conditions. The slanted case design and soft urethane band with adjustable holes ensure a comfortable fit. Made from bio-based resin, these models include a vibration alarm for training metrics and notifications for calls, emails, and social media. Designed for running endurance and daily health management, the GBD300-1D series combines functionality with modern style.- Module No. 3568- 48.9 x 47.4 x 14.9mm Case Size - 60g Weight- Shock resistant (G-SHOCK)- LED backlight (Super Illuminator) Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow- Mobile link (Automatic connection, wireless linking using Bluetooth®)- Training Function: Display of distance, speed, pace - Training Data (Up to 100 runs, up to 140 lap times per run) Elapsed time, distance, pace, calories burned- Life Log Data: Daily data display (step count), Monthly data display (running distance)- User profile creation- Airplane mode- World time: 38 time zones* (38 cities coordinated universal time), daylight saving on/off*May be updated when connected to a smartphone.- Stopwatch- Countdown Time- Vibrator- 4 daily alarms with snooze- Full auto-calendar (to year 2099)- 12/24-hour format- Button operation tone on/off- Vibration on/off- Regular timekeeping: Hour, minute, second, am, pm, month, date, day- Accuracy: ±15 seconds per month (with no mobile link function)- Approx. battery life: 2 years on CR2032