G-Shock GBA-900UU-3AER - Casio - G-Shock

Download the official G-SHOCK Connected app from your smartphone's app store. Open the app, enable Bluetooth® on your phone, and follow the in-app instructions to put your watch into pairing mode and complete the connection.

Yes, the G-Shock GBA-900UU-3AER is water-resistant up to 200 meters (20 bars), making it suitable for swimming, snorkeling, and recreational diving. It's safe for showering and daily water exposure.

The battery in this model is designed to last approximately two years under normal usage conditions. Heavy use of functions like the Super Illuminator or frequent Bluetooth® connections can slightly reduce battery life.

Yes, after an initial calibration period where the watch links with your smartphone's GPS, it can use its built-in accelerometer to estimate distance independently. For optimal accuracy, periodic re-syncing with your phone's GPS is recommended.

The Super Illuminator is a high-brightness LED light that illuminates the watch face, making it exceptionally easy to read the time and other display information in dark environments with a press of a button.

The watch uses a standard watch battery (Info needed: specific battery model, e.g., CR2032). When replacement is needed, it is recommended to have it done by an authorized service center to maintain the watch's water resistance.

While the watch tracks steps and distance, detailed activity history and graphs are best viewed through the G-SHOCK Connected app on your smartphone, which provides a comprehensive overview and management tools for your fitness data.

Ensure Bluetooth® is enabled on your smartphone and the watch is in pairing mode (check the quick start guide for button combination). Make sure the G-SHOCK app is open and your phone is within close proximity to the watch. Try restarting both your phone and the watch. If issues persist, unpair the watch from your phone's Bluetooth® settings and attempt the pairing process again.

For accurate distance tracking, ensure your watch has been recently linked with your smartphone's GPS for calibration. For step tracking, ensure your profile settings (like stride length, if available in the app) are correct. Walk naturally and consistently. Inaccurate readings can sometimes occur with irregular movements or carrying heavy items.

The Super Illuminator is powered by the watch's battery. If the light is dim, it might indicate a low battery. While the battery has a 2-year life, heavy use of the illuminator can slightly reduce this. If the battery is new or recently replaced, and the light is still dim, contact customer support or a service center.

If your watch is connected to your smartphone via Bluetooth®, it should automatically sync to the correct time. Check if the watch is successfully paired with the G-SHOCK app and that auto time adjustment is enabled. If not connected, manually set the time using the watch's buttons (refer to the user manual for specific instructions).