Compatible models: suitable for Samsung Galaxy Watch 3 (41mm SM-R850), Galaxy Watch Active 1 (40mm SM-R500), Galaxy Watch Active 2 (40mm SM-R830), Galaxy Watch Active 2 (44mm SM-R820), Galaxy Watch (42MM SM-R810), Gear Sport (SM-R600), Gear S2 Classic (SM-R732), suitable for Huawei Watch GT2 42mm, Watch 2, suitable for Garmin Vivoactive 3, Vivoactive 3 Music, Venu, Venu Sq, Vivomove 3, Move 3, Vivomove HR, Forerunner 245.