I’ve been using an iPhone 13 now for a good few days and the most impressive thing about it is the battery life. Coming from the iPhone 11 I’ve been used to easily getting all day battery life but I think I can do three days on the iPhone 13.
In my most recent testing I’m at 20 hours since a charge and I’m still at 75% battery left. I’ve been using it as I normally would with some RSS reading, social media, podcast and music listening. I’ve been using it as I normally would and I’d estimate that it’s 25-35% better than an iPhone 11.