The ha-ha-only-serious joke when I was at a place developing for iOS and Android, so had tons of test tablets for both, was that the Android tablets would be completely dead after a long weekend (or sometimes just a normal weekend...) in a drawer, and the iPads would still have enough charge to do something useful, and still wake up effectively instantly, if you forgot about them for a month.
As for the phones, I find I get 2-day charge out of a new iOS device. After 2-3 years it's about as bad as a new Android. 10% low-battery warning, and put in low-power mode right at bed time? It'll still have enough juice for the morning alarm and some morning HN reading. I mean, I try not to rely on that, but it does work. Difference has got to mostly be the software & firmware.
As for the phones, I find I get 2-day charge out of a new iOS device. After 2-3 years it's about as bad as a new Android. 10% low-battery warning, and put in low-power mode right at bed time? It'll still have enough juice for the morning alarm and some morning HN reading. I mean, I try not to rely on that, but it does work. Difference has got to mostly be the software & firmware.