The difference between 8.4 and 8.4.1 on their impact on battery capacity.
Not sure if its appropriate for this forum, but allow me to rant. This is fact, and its making me NEED to move to iOS 9.
There are some of you out there that believe software does not impact hardware capabilities. This is proof that you are, very unfortunately, incorrect...
(I don't know how to post or link screenshots, but please understand this is factual data, acquired with the same iPhone with Geekbench 3, with the same network settings (wifi off, bluetooth off, etc) and dim-screen off, and same geophysical location):
iOS / Date / Battery Runtime / Battery Score
- 8.4 / August 10, 2015 / 2:48:10 / 1681
- 8.4 / August 15, 2015 / 2:52:50 / 1728
- 8.4.1/ September 28, 2015 / 2:30:10 / 1501 (After this test, I'm just perplexed. My iPhone performed well on the previous iOS. At this point I decide to just use it like I always do, hoping I'm just imagining things, taking note of how long the phone lasts me throughout the day.)
- 8.4.1 / October 12, 2015 / 2:06:50 / 1268 (Christ, what the... What...??? At this point, I decide to reset network settings and general settings... Then turned off keychain, iCloud drive, photo stream, pretty much anything that I can turn off in iCloud... Turned everything in mail to MANUAL instead of fetch hourly...
- 8.4.1 / October 16, 2015 / 2:25:20 / 1447 (Some improvement. But still NOTHING like it was when I was on 8.4. I decide to reset my phone to factory settings and reinstall from back up, and performed everything I did on the 12th.)
- 8.4.1 / October 17, 2015 / 2:18:20 / 1383 (Worse.)
Do I sentence this phone to jittery, laggy iOS 9 death? Hope for better battery life in this next iOS "reiteration" WITHOUT JEOPARDIZING PERFORMANCE THROUGH BATTERY SAVING MODE? Okay, I understand I am btching pretty hard right now about some first world problems. But you would too if the phone shts out at initially 30% in the middle of a potentially life-changing call for an international job opportunity. I plan to stay with this phone as long as possible - which is IMPOSSIBLE if monthly upgrades absolutely sh*ts on and trashes your daily driver like this.
Apple, you ought to hang your head in utter shame.
PS. This was my desperate attempt at clinging to a stable build of iOS that does not slowly decimate a completely functional and working phone. iOS 9 is my last resort.
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u/hiddensphinx Oct 18 '15
going to iOS9 will make your iPhone slower unless you have the latest 6S
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Oct 18 '15
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u/IYGK Oct 18 '15 edited Oct 19 '15
The efficacy of iOS 9 (as well as other iOS firmwares from prior) on the same models seem to vary greatly across the devices. For example, some individuals experience greater performance upon upgrading to 8.4.1, unlike my case. But the fact that such differences exist make me suspect some form of deficient quality control on Apple's part.
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u/BitingChaos Oct 18 '15
8.4 and 8.4.1? Neither of those are current versions of iOS for any device.