Like many other iPhone 6 owners, I have been struggling with the phone since updating to iOS11. Anyways, I just changed my battery and I have some before and after benchmarks for comparison.
Original Battery (62% health)
New Battery (98% Health - although I expect this to go up after the first couple of charges)
Geekbench4 Results Before
Geekbench4 Results After
As you can see, the battery makes a huge difference on benchmarks. Feel wise, the difference is even more pronounced. Apps that used to take 5 seconds to load take only 1 or 2 seconds. The camera app is faster. Screenshots are faster. It's totally worth swapping the battery for. I can probably go one more year before upgrading to the iPhoneX S2.
I will say that iOS10 is still much faster than my newly renovated iOS11 device. I accept that the 1GB of RAM is limiting and that I should expect some slowdown. But I needed wOS4, so I had to update. The battery swap at least makes the iOS11 experience bearable.
ft
Original Battery (62% health)
New Battery (98% Health - although I expect this to go up after the first couple of charges)
Geekbench4 Results Before
Geekbench4 Results After
As you can see, the battery makes a huge difference on benchmarks. Feel wise, the difference is even more pronounced. Apps that used to take 5 seconds to load take only 1 or 2 seconds. The camera app is faster. Screenshots are faster. It's totally worth swapping the battery for. I can probably go one more year before upgrading to the iPhoneX S2.
I will say that iOS10 is still much faster than my newly renovated iOS11 device. I accept that the 1GB of RAM is limiting and that I should expect some slowdown. But I needed wOS4, so I had to update. The battery swap at least makes the iOS11 experience bearable.
ft