W770 Riiiver


Connection breaks unintentionally.

There are some possible causes of disconnection.


The dedicated app may not run in the background due to security and/or power saving settings of your smartphone.
In that case, you need to change settings of your smartphone to make the app run in the background.

Setting example of running in background

Connection time is short.

The connection time of the watch with smartphone is set to 6 hours at maximum when purchased.
You can choose connection time from the following on the “Setting” screen of the dedicated app: 6 hours, 8 hours, 10 hours, 12 hours and 18 hours.

For details, see “Screens of the dedicated app”.

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Screens of the dedicated app