The G-SHOCK GBA900UU-5A brings training-ready functionality to a design that fits city streets and outdoor days alike. Bluetooth connectivity taps into your smartphone's GPS for initial distance measurements, then lets the watch calculate distance independently. Track steps, distance, speed, pace, and calories, with auto lap readings to keep your running sessions on course. The CASIO WATCHES app puts settings, workout goals, and activity history within reach, while Super Illuminator helps keep the display visible after dark. A comfortable fit, shock-resistant construction, and 200-meter water resistance make it an easy companion from your workout to the rest of your day.

• Bluetooth smartphone connectivity
• GPS distance correction via smartphone
• Step, calorie, and distance tracking
• Speed and pace measurements
• Auto lap readings
• Five exercise intensity stages
• CASIO WATCHES app compatibility
• Automatic time adjustment
• Approximately 300 world time cities
• Tone-only notification alerts
• Activity history and life log
• Phone finder
• Super Illuminator
• Shock-resistant construction
• 200-meter water resistance
• Approximate battery life: 2 years
• Battery: CR2025
• Case: 51.3 × 48.9 × 16.6 mm
• Weight: 61 g