Consider me surprised, once again. That looks to be around a ~15% drop from iOS 12.
Let me compare that to the data I have on previous devices:
-iPhone 6s, iOS 15: 40-50% drop (from iOS 9-10).
-iPhone 6s, iOS 13: 33% drop (again, from iOS 9-10).
-9.7-inch iPad Pro, iOS 12: 20-23% drop (from iOS 9).
-For data’s sake, iPhone 6s, 63% health, iOS 10: 5% drop after 7 years (solely due to battery health).
As you can see, the improvement is significant. If Apple manages to maintain that 15% drop for the Xʀ’s entire update lifespan, it will perhaps manage to be the first iPhone with great battery life through its entire existence. I think everything depends on that. There’s no benefit if iOS 17 makes it 30%. So far though? It looks good enough so as to consider the Xʀ a full day phone throughout its entire update lifespan (so far).
I am not willing to see whether I can match your numbers on iOS 16 though😂
For whatever’s worth, my Xʀ on iOS 12’s last charge, with 93% health, extrapolated to the same-old 16 hours, so it looks as good as ever.
Health-wise our phones seem to be similar, so it’ll be interesting to see how both evolve, comparatively speaking.
So far, I’d describe my result as completely logical (battery health too good to see any runtime loss on the original version of iOS), and your result as positively surprising: while I knew that the Xʀ was better than the 6s in terms of runtime longevity, it still seems good. While I wouldn’t call it negligible, a 15% loss in runtime considering the Xʀ’s numbers isn’t anything abhorrent. It would mean that on heavier LTE, I’d lose a little over 1.5 hours. Neither on light use nor on moderate to heavy use is that number enough to significantly degrade the Xʀ’s battery life capabilities (at least to me). Looks decent so far. Like I said, the important test is ahead, but the fact that it looks good at this point is a whole achievement for Apple.
Your numbers match what I have expected: as of iOS 16, the iPhone Xʀ onwards have seen a degradation, but a degradation which is far better than that shown by earlier devices, and a degradation which matters less than it used to, due to the Xʀ’s sheer battery life numbers. Progress. I like that.
