A high-tech watch band and stylish bracelet all in one. this stainless steel 20mm scallop bracelet band is compatible with series 1, 2, 3, 4, 5, 6, 7, 8 or 9, se apple watch and fits 42mm, 44mm, 45mm and 49mm styles. apple watch is a trademark of apple inc. also compatible with any samsung galaxy watch with 20mm straps.