Through the years, Apple Watch bands have varied wildly in size. So when you are upgrading your Watch, it's possible you'll surprise whether one particular of your old bands will in shape. The just-released Series 9 has two case sizes, 41mm and 45mm, which were released with the Series seven, https://yesbookmarks.com/story17110678/helping-the-others-realize-the-advantages-of-pokemon-apple-watch-band