I often wonder why some people claim to lose battery life with similar usage between releases and others don’t. I suspect it’s similar to measuring gas mileage.
Easy answer: those who track it know what they’ve lost. Those who don’t, don’t know.
It is particularly difficult to gauge exact battery life by those who don’t track it if their usage patterns are more varied than not.
When discussing battery life with people who don’t care as much, I’ve noticed that pretty much all they notice are massive variations. By this I mean, when they cannot get through the day.
Like I said, with the massive increase in battery size and battery life, that is becoming more and more difficult with modern iPhones. Even heavy users will get through the day on a recent Plus or Pro Max.
Even an older Pro Max may only be suffering enough battery life impact after several major updates, not so soon.
As I said, you can get by with a massive loss before particularly caring if you aren’t the heaviest of users.
I’m sure that iOS 26 would incur a significant loss on my 16 Plus. I’m also sure that if I didn’t particularly care about tracking it exactly, I probably wouldn’t notice.
Name a percentage point and I can tell you exact SOT until that percentage point with my light, moderate, and heavy usage patterns. That is not normal. Even I can see that.
Those who don’t care as much won’t notice.
Perhaps they need a 30-40% drop in SOT to notice. That doesn’t happen after one major update. I’m even unsure of iOS 26’s impact. Some mentioned 15-20% on the 16 series, which sounds appalling for a brand new iPhone, but not too appalling so as to make it useless.
Which is why most don’t care about downgrading and keep updating. Which is why Apple gets away with this pathetic malware policy.
People accept that their devices get older and are therefore garbage. It’s sad, but it is what it is.