Attention: Users of ECB-30 The app compatible with ECB-30 is CASIO WATCHES. Please download the CASIO WATCHES app for use with your watch. ●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 EDIFICE Connected 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/ We recommend using EDIFICE Connected 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. EDIFICE Connected cannot be used on Android feature phones with arrow keys. 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 ⋅ Android 6.0 or later. * Bluetooth installed smartphone only. Applicable Watches: ECB-800, ECB-900, EQB-1000, ECB-10, EQB-1100, ECB-20, ECB-S100, EQB-1200 *Some watches unavailable in your region may be displayed in the application.