Source: iMore/Rene Ritchie
Whether it s an iPhone 12 or an Apple Watch Series 6, the batteries that power these devices do decay over time that s just the reality of battery technology. Apple has tried to make lots of improvements in its software to sustain the health of batteries in older devices, but a lot of those features have been included in iOS, but watchOS 7 brought along the Optimized Battery Charging.
When enabled, Optimized Battery Charging allows your best Apple Watch to learn from your personal charging habits, so it can wait to finish charging to 100% until you need it. So, in theory, if you typically charge your Apple Watch overnight while you re sleeping, it will charge to 80% and then wait until slightly before you wake up to charge the rest.
Apple is expected to announce watchOS 8 at WWDC, and while I don't know what they will announce, I have some ideas. Here are the features I want to see Apple included in watchOS 8.