Skip to main content

Does the iPhone 15 have an overheating problem? Here’s what we know

The Apple iPhone 15 Pro Max's camera module.
Apple iPhone 15 Pro Max Andy Boxall / Digital Trends

Last fall, Apple unveiled the iPhone 15 and iPhone 15 Pro series, which generated a lot of excitement among consumers. However, some users who got their hands on the devices early on expressed dissatisfaction by taking to social media to complain about overheating issues.

Apple addressed the issue somewhat quickly by releasing a software update. Months later, some iPhone 15 users still complain about overheating problems with their handsets.

Recommended Videos

Here’s where things stand on the iPhone 15 overheating issue.

Please enable Javascript to view this content

What were people saying about iPhone 15 overheating issues?

Someone holding the iPhone 15 Pro Max outside.
Joe Maring / Digital Trends

Early iPhone 15 adopters took to Apple discussion groups to express their dismay with the battery life on their new handsets. Messages last fall were also left on Reddit and elsewhere.

One Redditor said “If it’s true, Apple’s QA has gone down hill quick.” Another Redditor jokingly commented, “Apple doing its part to make PC gamers feel more at home.” On Apple’s community forums, one user reported that their iPhone 15 Pro Max was “heating up even when I’m not using it.” Someone else reported having the same issue, commenting, “My 15 Pro Max is getting hot and battery draining too quickly.”

Upon initial use, some Digital Trends writers, including myself, experienced extreme heat from our new phones, which seemed to resolve the problem after 24 hours.

What did Apple do?

A natural titanium iPhone 15 Pro (left) and a green iPhone 15 on a Haunted Mansion wallpaper placemat.
Christine Romero-Chan / Digital Trends

On October 7, Apple released an update to iOS 17 that it said would resolve the issue, which it blamed on initial startup issues and a bug. Before the update release, the iPhone maker explained to CNET:

“We have identified a few conditions which can cause iPhone to run warmer than expected. The device may feel warmer during the first few days after setting up or restoring the device because of increased background activity.”

Did it really work? What can you do?

iPhone 15 Pro Max lying on the ground surrounded by leaves.
Joe Maring / Digital Trends

Despite multiple iOS 17 updates, some iPhone 15 users still reported overheating problems. Perhaps more interestingly, Apple has indirectly confirmed this. According to Notebookcheck, Apple considers iPhone 15 Pro models running warmer than previous iPhones to be “expected behavior.” A major design change is coming to the iPhone 16 series to (finally) address this issue. Apple is rumored to be exploring the “use of graphene to mitigate lingering thermal issues.”

I haven’t encountered any overheating problems with my iPhone 15 Pro Max except on the first day. However, if the rumors are true and Apple intends to use graphene in the iPhone 16, it implies that data indicates that some iPhone users are still experiencing this issue. Unfortunately, that could also confirm that Apple cannot fully resolve the issue using software on the current models.

As Graphene-Info explains: “Graphene is an excellent conductor of heat and electricity and has interesting light absorption abilities. It is truly a material that could change the world, with unlimited potential for integration in almost any industry.”

If your iPhone 15 is overheating, contact Apple for assistance. Every new Apple phone comes with a year of free hardware support, so take advantage of this. At the minimum, Apple support might offer some new advice on what to do or give you a new phone for your troubles.

Bryan M. Wolfe
Bryan M. Wolfe has over a decade of experience as a technology writer. He writes about mobile.
Apple is about to stop selling multiple iPhones in Europe. Here’s why
The iPhone 14 Plus held in a man's hand.

The iPhone SE and iPhone 14 series will no longer be available for purchase in Europe at the end of the year. In an effort to make technology more consumer-friendly, the European Union ruled that any mobile device sold must be able to charge through USB-C, according to iGeneration. While more modern entries in Apple's lineup already meet those guidelines, the iPhone SE and iPhone 14 do not.

These aren't the newest additions to Apple's lineup, but the iPhone SE and the iPhone 14 series are still sold in Europe. These will be pulled from shelves as the deadline approaches. Customers have plenty of options, but this decision will leave the European market without an iPhone SE option until the next model releases in 2025.

Read more
Apple’s mysterious iPhone 17 Air is one step closer to becoming a reality
A render of the iPhone Air.

For months, rumors have indicated that Apple plans to remove the iPhone Plus from the 2025 iPhone 17 lineup, and replace it with an entirely new model that might be called the “iPhone 17 Air.” A new report suggests that this phone is now closer to becoming a reality.

According to Digitimes, the new phone has entered the initial stage of manufacturing, known as the new product introduction (NPI) phase. At this stage, Apple and its manufacturing partners finalize a blueprint for creating the phone. It's a significant step in the process.

Read more
Can this Android phone camera beat the iPhone 16 Pro? I flew to Bali to find out
iPhone 16 Pro next to the OPPO Find X8 Pro on a bed of pebbles

The iPhone 16 Pro has one of the best smartphone cameras you can buy, and it sets a standard for everyone to beat, especially regarding video. We've already seen Samsung and OnePlus try and fail to beat Apple, and the Google Pixel 9 Pro has proven that even it will fall somewhat short.

However, what happens when you look outside the U.S.? Smartphones from Xiaomi, Vivo, and Oppo have set camera standards that put even the best in the U.S. to shame. I was in Bali last month testing the iPhone 16 Pro camera against a new smartphone from Oppo.

Read more