Apple Watch Series 7 teardown reveals big screen changes, minor battery upgrade

Repair specialist iFixit performed its customary teardown of Apple Watch Series 7 this week, revealing unannounced component specifications and highlighting tentpole features like the wearable's larger screen.The all-in-one teardown includes both 41mm and 45mm Apple Watch Series 7 variants, exposing component details that have gone unreported by Apple. To offer a more in-depth look at the new wearable, and to compare it against past models, iFixit enlisted the help of three former Apple Watch engineers who work at production defect analysis firm Instrumental.Looking at power delivery, the 45mm model comes with a 1.189 watt hour battery that is 1.6% more capacious than the 1.17Wh part used in 2020's 44mm Apple Watch Series 6. The 41mm version sports a 1.094Wh battery, a 6.8% increase in capacity over the 1.024Wh cell that powered last year's 40mm Watch. Read more...