Apple Watch Series 10 (46mm) vs Apple Watch Series 11 (46mm): Size & Dimensions

The Apple Watch Series 10 (46mm) and Apple Watch Series 11 (46mm) share nearly identical dimensions — the practical difference comes down to weight, materials, or other specs rather than size. They match almost exactly in height, at 46.0 mm. They match almost exactly in width, at 39.0 mm. They match almost exactly in thickness, at 9.7 mm.

The Apple Watch Series 11 (46mm) is the heavier of the two at 37.8 g, compared with 36.4 g for the Apple Watch Series 10 (46mm). That is a 1.3999999999999986 g difference (4%). The gap is small enough that you would barely notice it day to day.