Thanks this is perfect. That's really decent battery life.

Note that video playback is not very indicative of typical usage. You will probably get less than half that when using apps.

is there anything that says why they were able to reach this feat?

I was reading and thought this was about as concrete as they got:

"The new mechanical architecture improves heat dissipation and efficiency for up to 20 percent better sustained performance. Along with the new internal design and advanced power management of iOS 18, larger batteries are optimized to offer a huge leap in battery life."

The vast majority of energy use when watching videos is the screen, so my guess is that most of the improvement is from lower screen energy use when at its lowest brightness.

>advanced power management

>larger batteries

>optimized

> a huge leap in battery life

This is still all just marketing puff and air though.

Also 20% better than what?

This is designed so that when you try to nail them down, they can change what it is 20% better than.