CASIO WATCHES is available for free here:


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* Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc.
* Other service and product names and so forth are trademarks or registered trademarks of the respective companies.

OS version

We recommend using CASIO WATCHES on the following operating systems.
Operation is not guaranteed for any operating system not listed below.
Even if an operating system has been confirmed as compatible, software updates or display specifications may prevent proper display and/or operation.
CASIO WATCHES cannot be used on Android feature phones with arrow keys.

iOS (Apple)

Terminal name (OS version) Compatibility Remarks
iOS 13 or later


Terminal name (OS version) Compatibility Remarks
Android 8.0 or later