20mm replacement strap compatible models:For Garmin Approach S40For Garmin vivomove HRFor Garmin vivoactive 3tFor Garmin Vivoactive 3For Garmin vivoactive 3 MUSICFor Garmin Forerunner 645 MUSICFor Garmin Forerunner 245 MUSICFor Garmin VenuFor Garmin Venu SQFor Garmin Move 3For Garmin Move LuxeFor Garmin Move StyleFor Samsung Gear S4?42mm?For Samsung Galaxy watch Active 2 40mmFor Samsung Galaxy watch Active 2 44mmFor Samsung Galaxy Watch 3 41mmFor TicWatch EFor Gear Sport SM-R600For Moto 360 2nd Gen Men's 42mmFor Fossil Q GazerFor Pebble Time Round LargeFor Withings Steel HR 40mmFor Huami Amazfit GTR 42mmFor Huami Amazfit BipFor Huami Amazfit Bip Pace LiteFor Huami Amazfit Bip U