The basic application for connecting and communicating with a Bluetooth(R) v4.0.
CASIO WATCH+ — description
● Description This is the basic application for connecting and communicating with a Bluetooth(R) v4.0 enabled CASIO watch. Pairing your watch with a smartphone enables use of a variety of different Mobile Link functions that greatly enhance the smartphone experience. The CASIO WATCH+ app also simplifies certain watch operations by letting you perform them on your phone screen.
Visit the website below for details. http://www.edifice-watches.com/bs/
CASIO WATCH+ can be downloaded using a phone running Android 6.0 or higher. Operation has been confirmed on the phones below, and use of these phone models is recommended. Note that operation is not guaranteed on any phone not included below. More phone models will be added as soon as operation is confirmed.
Even if operation with a specific phone model has been confirmed, a phone software update, an Android OS update, or other factors may result in improper display indications and/or operation. News about the causes of incompatibility and other operational problems will be made available on the CASIO website.
If the smartphone is set to power saving mode, the app may not operate properly. If the app does not operate properly with the smartphone in power saving mode, please turn off power saving mode before use.
Please refer to the FAQ link below to resolve problems such as being unable to connect or operate the watch. https://support.casio.com/en/support/faqlist.php?cid=009001019