Will only iPhone 17 have these improvements?
The iPhone 17 will be one of the first to fully exploit this feature. It will come with a slimmer design and a smaller battery. That's why it needs extra efficiency.

However, Bloomberg clarified that this tool will reach all devices compatible with iOS 19. It is not exclusive to the new model.
More than battery: complete redesign of iOS
Besides focusing on energy consumption, iOS 19 will include the biggest visual change since iOS 7. The Verge anticipated a smoother redesign, with bright icons and a more fluid interface.
The redesign, internally called "Solerium," will add a floating navigation bar and new menus for native apps.













