Please Choose 9V2A/12V1.5A Or Higher Power to achieve simultaneous maximum power charging. Otherwise, the watch may be charged intermittently. We advise that use QC 3.0 adapter while charging .
This item is for apple watch series, not for Samsung watch series.
DO NOT update the system from 5.0.1 to 5.1.1, Or the wireless charger will have a problem of Not charging itself or sometime charging sometime not charging. If you have for iWatch4, you'd better not update its system. If you have updated the system you can "Restore factory settings, return to the system of 5.0.1" For iWatch 2 3 update to new system there is no influence to use it.