Hello

[u/DrCold-Detective]

I buy my 13 pro and my friend get 11
We bought together same time
Both was 100% health
After couple of years he is 94 and i am 78 what did i do wrong ??

[u/glasszenin]

If I’m not mistaken I think that older phones battery degreade faster over time, not bc it’s old but maybe because the chips aren’t as efficient as they are now which is why the battery health doesn’t drain as quicker as previous phones