Compatible models:☛20mm straps are compatible with- Samsung Galaxy Watch Active (40mm) SM-R500- Samsung Galaxy Watch Active 2 40mm & 44mm- Samsung Galaxy Watch 42mm (SM-R810/SM-R815)- Samsung Galaxy Watch 4 40mm 42mm 44mm 46mm- Samsung Gear Sport / Gear S2 classic SM-R732- HUAWEI WATCH GT GT 2 46mm- Amazfit GTR 42 mm- Amazfit Bip U- Amazfit Bip U Pro- Amazfit Bip S- Amazfit Bip S Lite- Amazfit Bip 3- Amazfit Bip 3 Pro- Amazfit GTS- Amazfit GTS 2- Amazfit GTS 2e- Amazfit GTS 2 Mini- Amazfit GTS 4- Amazfit pop- Amazfit pop pro-Timex Unisex Weekender 38mm Watch-Timex Expedition Scout 40 Watch-Timex Easy Reader 38mm-Timex Weekender 40mm-Ticwatch 2-Pebble Time Round Large- All Watches with 20mm Wide Lug (Both Smart and Traditional Watches).☛22mm straps are compatible withAmazfit PaceAmazfit StratosAmazfit Stratos 2Amazfit Stratos 2SAmazfit Stratos 3Amazfit GTR 47mmAmazfit GTR 2Amazfit GTR 2eAmazfit GTR 2 eSIMAmazfit GTR 3Amazfit GTR 3 ProAmazfit GTR 4Samsung Galaxy Watch 3 45mmSamsung Galaxy Watch 46mmSamsung Gear S3 FrontierSamsung Gear S3 ClassicSamsung Gear Gear 2 R380 R381 R382Huawei Magic GTHuawei Magic Watch 2 46mmHuawei Watch GT SportHuawei Watch GT ActiveHuawei Watch GT ClassicHuawei Watch GT2 SportHuawei Watch GT2 ElegantHuawei Watch GT 2eHuawei Watch GT 2 ProHuawei Watch GT 2 46mmHonor Watch GS ProHonor Watch Magic 46mmTicWatch Pro- All Watches with 22mm Wide Lug (Both Smart and Traditional Watches).Special magnet lock design makes it easy to adjust the size of the strap.Package includes:1 x Replacemet Band(no smart watch)