Apple Watch SE (2nd gen, 44mm) vs Apple Watch Series 11 (45mm)

The Apple Watch SE (2nd gen, 44mm) and Apple Watch Series 11 (45mm) are most easily told apart by their overall size. On height, the Apple Watch Series 11 (45mm) measures 47.0 mm against the Apple Watch SE (2nd gen, 44mm)'s 44.0 mm — about 3.0 mm more. On width, the Apple Watch Series 11 (45mm) measures 39.6 mm against the Apple Watch SE (2nd gen, 44mm)'s 38.0 mm — about 1.6 mm more. They match almost exactly in thickness, at 10.7 mm.

The Apple Watch Series 11 (45mm) is the heavier of the two at 39 g, compared with 32.6 g for the Apple Watch SE (2nd gen, 44mm). That is a 6.399999999999999 g difference (20%). In daily handling the difference is easy to feel.