Can only install 3 watch faces on GT BECAUSE I CAN NOT uninstall the pre installed watch faces, 14 OF THEM (ugly rat added at update due to Chinese year of the rat). Also horrible UI on app amd the watch itself has basically no apps except the pre installed health and pulse appa, so no wonder battery time is great. Also never notifies when BT connection ia lost even if i set it up. Never again Huawei, my Samsung watch might have less battery life (2 vs 14 days) but at least it has some memory