Casio G-Shock GBA-900-1ADR

Product Overview

Brains and brawn meet in the G-SHOCK GBA-900 line, delivering legendary G-SHOCK toughness with advanced smartphone connectivity. Engineered for those who move, this timepiece uses Bluetooth® to access your smartphone's GPS, allowing the internal accelerometer to calibrate for high-precision distance measurements.

Once calibrated, the watch accurately tracks your distance, speed, and pace entirely on its own. Whether you are hitting the track or the trail, the GBA-900 provides the real-time data you need to crush your fitness goals.

Major Features

• Built for Runners: Track distance, pace, and laps with automatic accelerometer calibration.
• Smartphone Link: Automatic time adjustment and easy watch setting via Bluetooth®.
• Fitness Tracking: Calorie and distance calculations based on step count and metabolic rate.
• MIP LCD Display: Enjoy the clearest digital display yet, ensuring data is readable at a glance.
• Super Illuminator: Double LED lights with "Auto-Light" feature for visibility in total darkness.
• Soft Urethane Band: Designed with ventilation and a soft-feel material for a comfortable, quality fit during intense workouts.

Technical Specifications

Basic Information

• Case Size (L× W× H): 51.3 × 48.9 × 16.6 mm
• Weight: 61 g (Ultra-light for its size)
• Case & Bezel Material: Durable Resin
• Water Resistance: 200-meter water resistance
• Construction: Shock Resistant
• Power: Approx. battery life of 2 years (CR2025)

Smart Features & Sensors

• Life Log Data: Step count, calorie consumption, and distance tracking.
• Smartphone Link: Wireless linking using Bluetooth® for auto-time adjustment and phone finder.
• App Integration: Access activity history and manage exercise intensity through the CASIO WATCHES app.
• Simple Notifications: Tone alerts for smartphone notifications.

Watch Features

• Stopwatch: 1/100-second stopwatch with a 45-record memory (lap/split times, average pace, calories burned).
• Interval Timer: Set up to five different time settings for circuit training; includes auto-repeat.
• Dual Time: Swap home city time easily for international travel.
• Hand Shift Feature: Analog hands move out of the way to provide an unobstructed view of the digital display.
• Alarms: 5 daily alarms and hourly time signal.

The Ultimate Training Partner

Precision Tracking

The GBA-900 refines its internal distance measurements by linking with your phone’s GPS. This allows you to track your running metrics accurately even when you aren't carrying your phone. The watch also displays five stages of exercise intensity, helping you maintain your target heart rate and effort levels.

Durable Construction

The rugged resin case and mineral glass are designed to handle the vibrations and impacts of high-intensity training. Despite its heavy-duty build, the watch weighs only 61 grams, making it one of the most lightweight options in the G-SQUAD lineup.

Stay Connected

Beyond fitness, the GBA-900 keeps you in sync with your life. Automatic time adjustment ensures you are never a second late, while the Phone Finder feature helps you locate your device with the press of a button.