The iPhone 15 series was plagued by overheating issues which were acknowledged by Apple which blamed lackluster software optimization in iOS 17. The issue has since been largely mitigated with the release of iOS 17.0.3 but it seems Cupertino may go for a hardware solution in next year’s iPhone 16 series.

iPhone 15 Pro Max teardown
iPhone 15 Pro Max teardown

Based on a new rumor, Apple is actively considering replacing the copper heat sink on the iPhone 15 with a graphene solution for the iPhone 16. Graphene offers superior thermal conductivity compared to copper and should be a noticeable upgrade on next year’s iPhones. The graphene heat sink would be paired with a new metal bracket housing for the battery to promote better heat transfer and cooling. We should mention that this is still an early rumor so as usual take it with a grain of salt.

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