iPhone 15 leak just tipped secret weapon Android can’t beat

an image of an iPhone 15 Pro render and claimed solid-state buttons
(Image credit: MacRumors)

We’ve heard a bunch of rumors claiming the iPhone 15 Pro will have a solid state design, swapping traditional mechanical buttons for a capacitive alternative in the process. Now a new report claims to divulge some extra details about this switch — and it could be another weapon that helps iPhone beat the best Android phones on battery life

An anonymous user posted an extensive breakdown of the rumored changes on the MacRumors forum. Leaker ShrimpApplePro noted they are the same person that divulged early details about the Dynamic Island before the launch of the iPhone 14 — suggesting there may be some weight to their claims.

The main point to note is you may be able to trigger the capacitive buttons when an iPhone 15 is switched off. That’s reportedly thanks to a new micro-processor that replaces the existing “Super Low Energy Mode” in the iPhone’s chipset

That mode is what lets you use Apple Pay or the Bluetooth Find My tracking when the iPhone has died or is switched off. The user claims that Apple is testing the micro-processor's ability to do all this and detect various capacitive button presses when the phone is switched off.  More to the point it sounds like this new micro-processor will use considerably less power in the process — giving a boost to the iPhone 15 Pro's battery life.

The buttons themselves are also expected to come with the ability to sense presses, holds and a version of Apple’s 3D Touch. It’s unclear how much of this will actually make it to production models, but the micro-processor is reportedly making the cut. What it can handle will apparently depend on whether the testing can pass Apple’s notoriously high standards.

Solid state buttons can offer a lot more functionality

iPhone 15 Pro renders by Technizo

(Image credit: Technizo)

The user’s sources claim the new button technology comes with a bunch of potential possibilities. One of those involves the former mute switch, which is also being replaced with a capacitive button. A button that the user claims will be remappable, potentially letting you do more with it.

Hopefully one of those features will still let you mute your phone with the push of a button. The iPhone is the only recent smartphone to still come with a physical mute toggle, and it would be a shame to see such a useful feature be killed off for good. However, the choice to do more with the button is always a good thing — especially if the iPhone 15 Pro can register different pressures and button button-pressing combinations.

Other details noted include the speed of volume change depending on the force registered by the button, and the ability to control volume by sliding up or down the new volume sensor. The fact that the micro-processor may still be active when the phone is powered down suggests that users may still be able to press the volume and power buttons to perform a hard reset on a misbehaving phone. But we will have to wait for the release model to see what’s going on there.

While we can’t take this information for granted (especially if these features are still in active testing) it is interesting to hear what could be on the way. Particularly how Apple could be leveraging a design change to its advantage.

More battery life for you

But the lower power consumption on its own is a reason to get excited, particularly given everything else Apple is rumored to be including with the iPhone 15 Pro series. That includes the A17 Bionic chipset, which is rumored to be the first 3nm smartphone chip. Not only does that mean the chip platform is smaller; higher density allows for better processing power while also reducing energy consumption.

There are far more factors that play into a phone's battery life, but they do all add up. And given the A17 3nm process and the new low-powered micro-processor chip mentioned on the MacRumors forum, things are looking good. If everything plays out the way the rumors claim, we could see the iPhone 15 Pro and Pro Max appear on our list of the best phone battery life.

That’s on top of other potential benefits, including better seals against water and dust intrusion, and fewer mechanical mechanisms that can wear out over extended periods of time.

The iPhone 15 series is expected to arrive later this year, and we’ll bring you all the biggest news as and when we hear it.

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Tom Pritchard
UK Phones Editor

Tom is the Tom's Guide's UK Phones Editor, tackling the latest smartphone news and vocally expressing his opinions about upcoming features or changes. It's long way from his days as editor of Gizmodo UK, when pretty much everything was on the table. He’s usually found trying to squeeze another giant Lego set onto the shelf, draining very large cups of coffee, or complaining about how terrible his Smart TV is.