That''s interesting, thanks. Wonder what "health" is exactly from a concrete physical measurement? Number of cycles remaining?
Not scientific...but if you subtract the 7 due to its newness relative to the others, I see a disturbing trend from the older 5s health to the newer 6s health. Are there any formal studies anyone can link to that compare the trend in health over time for Apple's iPhone batteries?
Well, this is anecdotal most likely, but... my iPhone 6 and 7+ have been used close to the same amount of time. Give or take a month or two. I guess I'll see how my 7+ works out in relation to the way the 6s managed.