This apple watch charger supports all-version apple watch.The charger is compatible with apple watch series 4 3 2 1 all 38mm 40mm 42mm 44mm verson. Magnetic charging easily dock your apple watch with shock absorption and high-temperature resistance. Strong magnetic adsorption allows you to adjust the angle freely without deviating from the charger centre. Fast charging the iwatch wireless charging stand offer a fast original charging speed which less than 2. 5 hours. (note: to better protect from getting too hot, we advise to charger without I-watch case. Use 5v /2a adaptor or apple watch original adapter, otherwise, it will affect the charging effect).