Built-in GPS. Water resistance to 50 meters. A new lightning-fast dual-core processor. And a display that’s two times brighter than before. Full of features that help you stay active, motivated, and connected, Apple Watch Series 2 is designed for all the ways you move.
the new 42mm models are 11.4mm thick and weigh 34.2 grams, compared to 10.5mm and 30 grams for original 42mm models.
This means that all Apple Watch Series 2 models are 0.9mm thicker and up to 4.2 grams heavier, likely due to the inclusion of an up to 35% larger battery, but the real-life difference on the wrist should be relatively unnoticeable. The width and height of the Series 2 models remain unchanged.