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Does your iPhone 15 Pro / Pro Max run hotter than your previous iPhone?

  • Yes, it runs hotter and I set it up as new

    Votes: 3 9.7%
  • Yes, it runs hotter and I restored data from old iPhone / backup

    Votes: 3 9.7%
  • No, it runs similar and I set it up as new

    Votes: 7 22.6%
  • No, it runs similar and I restored data from old iPhone / backup

    Votes: 16 51.6%
  • No, it runs cooler and I set it up as new

    Votes: 1 3.2%
  • No, it runs cooler and I restored data from old iPhone / backup

    Votes: 1 3.2%

  • Total voters
    31

maratus

macrumors 6502a
Original poster
Jun 12, 2009
701
273
Canada
Apple is usually very conservative when it comes to changing thermal design, and I don't think that either stainless steel or titanium band plays a crucial role in cooling. If anything, an additional layer of aluminum inside the titanium frame should spread the heat evenly and help with the heat dissipation.

I think that Apple software is more likely to be the problem rather than TSMC manufacturing process. TSMC have more at stake in this scenario and polishing their node is the absolute #1 priority. They also have a solid track record. It's also less likely that Apple hardware is to blame in this case, but mostly because iPhone 15 Pro internal chassis isn't really that much different from 14 Pro or 13 Pro.

The software, however, could be the culprit in a very particular way. If backup data restoration from iCloud / local backup on iOS 17 is bugged in any way, it might cause an additional continuous load in the background. In other words, due to a software problem there could be a system process that maxes out one or more threads. I don't think there are any applications, including games, that are capable of saturating A17 Pro outside of specific CPU + GPU benchmarks. So any extra process going crazy in the background would result in more heat.

There're two additional facts that support my theory:

1. Apple already confirmed a bug where data transfer from another iPhone would stuck in infinite loop and released an iOS update to resolve that. Why couldn't there be more related issues that haven't been found and fixed yet?
2. Both of my freshly setup 15 Pro Max devices run as cool as my 13 Pro Max, if not cooler, when playing games.

Please participate in the poll and perhaps it helps us to understand the issue better! If you'd like to specify which way you restored the data (iCloud backup / Mac or PC local backup / directly from another iPhone), please post the details here. Thanks!
 
Last edited:
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Reactions: maverick786us
Hey guys, we need more votes. I know you new 15 Pro users are out here trolling in other threads.
 
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