Since the release of the original Apple Watch, Apple has stated a battery life of 18 hours. Moreover, over the past six generations, nothing has changed. According to the latest news, Apple will improved battery life of the Apple Watch Series 7.
A body temperature sensor was expected to appear in the Apple Watch Series 7 this year, but its implementation was delayed until next year as Apple decided to use the space inside the case to accommodate a larger battery.
In addition, the Apple S7 chip, which will be installed in the watch, will receive a double-sided design, again to free up more space for the battery. The new watches will remain the same size as the current models, or be slightly thicker.
The sides of the watch will need to be flatter to match the design of modern iPhones and iPads, and the bezels will be thinner, which could lead to a larger display diagonal.
In the coming years, Apple may introduce blood sugar and alcohol sensors into its watches.