Galaxy Watch 6 Classic/ Watch 6/Watch 5 pro 1.772 in/ Watch 5 1.575 in 1.732 in/ Watch 4 Classic 1.654 in 1.811 in/ Watch 4 1.575 in 1.732 in / Watch 3 1.614 in 1.772 in / Active 2 1.732 in 1.575 in / Active 2 1.732 in 1.575 in / Active