One Samsung app consumes a lot of battery power on Galaxy S21 Ultra Open sales of the Samsung Galaxy S21 Ultra have not yet begun, but some lucky ones have already received the flagship device in their hands. Youtubers and bloggers are testing the Samsung Galaxy S21 Ultra and sharing their impressions. But these impressions are not always positive. SamMobile bloggers have discovered an unpleasant problem for users of the SmartThings service. As it turned out, the SmartThings application, One UI 3.1 user interface and Galaxy S21 Ultra are not friends with each other. As a result, using SmartThings consumes a lot of battery power.