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Apple Watch Series 4 teardown exposes all the big changes

Jon Fingas
Apple Watch Series 4 teardown exposes all the big changes

Apple Watch Series 4 brings a lot of changes, but how much has it changed on the inside? Quite a bit, actually -- iFixit has torn down the new smartwatch, and it's clear that this was Apple's opportunity to rethink some of the hidden details. You'll also see a much thinner (if longer) Taptic Engine, a much larger speaker and a smaller battery -- the 44mm Watch pack has 20 percent less capacity than that from the 42mm Series 3.