Some new iPhone 7 handsets have reportedly started hissing at their owners

The iPhone 7
The all-new iPhone 7.

If you've bought yourself a shiny new iPhone 7 this weekend then you might want to take a moment to get your ear close to the handset and make sure it's not making any untoward hissing sounds.

A couple of people have reported the issue on Twitter and been offered replacement devices by Apple, so it looks like this could be a minor manufacturing defect affecting a small number of iPhones rather than a large scale problem that's going to bring Apple to its knees.

Still, it takes a little of the shine off the iPhone 7 launch weekend. Yesterday we found out that the motionless home button in the new phones doesn't work well with gloves.

Sounding off

If you watch the video posted by Relay FM founder and 512 Pixels writer Stephen Hackett you'll see the noise is quiet but definitely noticeable. The fact that it gets worse when the phone's working hard suggests the CPU is at fault.

"I've heard from several other people with similar experiences, but others are saying past iOS devices have displayed this issue," writes Hackett. "I've handled more than most, and haven't come across this."

Across the rest of Twitter most people seem to be reporting the news rather than making any fresh claims of hissing sounds, but you might want to check your own iPhone 7, just in case.

Here's our video review of the new iPhone 7:

Via Engadget

David Nield
Freelance Contributor

Dave is a freelance tech journalist who has been writing about gadgets, apps and the web for more than two decades. Based out of Stockport, England, on TechRadar you'll find him covering news, features and reviews, particularly for phones, tablets and wearables. Working to ensure our breaking news coverage is the best in the business over weekends, David also has bylines at Gizmodo, T3, PopSci and a few other places besides, as well as being many years editing the likes of PC Explorer and The Hardware Handbook.