Reference: GBA900-7A

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Case: white resin
Size: 51.3 × 48.9mm
Movement: manufacture quartz caliber
Function: date, dual time, chronograph, step tracker, Bluetooth connectivity with GPS
Dial: black with LED illuminator
Hands: luminous
Power Reserve: approximately two years
Water Resistance: 200m
Strap/Bracelet: white resin
Factory Warranty: one year


This Power Trainer can measure distance using an accelerometer while linked with a smartphone’s GPS function via Bluetooth. Once you take measurements with a smartphone, you will be able to measure distance with the watch alone the next time. Distance and running time measurements are used to calculate your pace, and an auto lap feature automatically records the time it takes to cover a specific distance. You can also check your activity history by linking with an app running on your smartphone. The app also helps to simplify the configuration of watch settings and training management.

A five-level exercise intensity graph and a daily goal attainment rate help keep you motivated. The Super Illuminator keeps face information easy to read, even in the dark. The strap’s soft urethane material improves the fit to the wrist, and vent holes improve breathability. This watch connects with your phone via Bluetooth to support auto time adjustment, phone notifications, step tracking, and other functions throughout the day. Battery life is approximately two years between replacements.