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App Issues

Please select the issue you are experiencing from the options below.

Note: The information on this page is based on the “CASIO WATCHES APP”.
Note: The names and layout of the settings menu may vary depending on your smartphone model, OS version, and app version.
Note: If this is your first time connecting a smartphone, you must perform the “pairing” procedure beforehand.
If you haven't paired your device yet, click here.

■Related Information

Depending on the settings of your phone, the connection with your watch may be unstable.
Adjusting these settings may improve and stabilize functionality.

The CASIO WATCHES APP can be installed on iOS (iPhone) or Android smartphones.
Check the requirements below before use.

Operating environment

Smartphone OS 
 

Supported operating
systems


iPhone


iOS 16 or later


Android


Android 12 or later

Note: These requirements may change with app updates.

・Before using the app, update your smartphone to its latest OS version.
・Please make sure you are using the latest version of the app.
・Even with their OS latest versions, the phones listed below may experience compatibility issues, which could prevent the app from functioning properly.
　・ZTE Libero 5G Series
　・UMIDIGI F3 Pro 5G
　・Xiaomi POCO series
　
The Android OS is used by various smartphone manufacturers around the world, and its architecture varies widely.
We are doing everything we can to ensure compatibility with smartphones, which are widely used.
However, we cannot verify or guarantee compatibility with all devices, including highly customized smartphones based on the Android OS.

Note: Apple and iPhone are trademarks of Apple Inc., registered in the U.S. and other countries.
Note: Android, Google, and Google Pixel are trademarks of Google LLC.
Note: Xperia and STAMINA are trademarks or registered trademarks of Sony Group Corporation or its affiliates.
Note: AQUOS is a trademark or registered trademark of Sharp Corporation.
Note: GALAXY is a trademark or registered trademark of Samsung Electronics Co., Ltd.
Note: Xiaomi is a trademark or registered trademark of Xiaomi Inc.
Note: OPPO is a trademark or registered trademark of Guangdong OPPO Mobile Telecommunications Corp., Ltd.
Note: Huawei is a trademark or registered trademark of Huawei Technologies Japan Co., Ltd.
Note: Bluetooth is a trademark or registered trademark of Bluetooth SIG, Inc., USA.
Note: Wi-Fi is a trademark or registered trademark of the Wi-Fi Alliance.
Note: Other company names and product names are trademarks or registered trademarks of their respective companies.

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