Apple Developing iPhone Anti-Theft Upgrade — But You May Need An Apple Watch, Too

Your next iPhone could lock itself the moment it's snatched from your hand — but only if you're wearing an Apple Watch. Apple is developing a new anti-theft upgrade that instantly locks an iPhone when it detects a sudden, unauthorized removal, according to a Forbes report by David Phelan. The feature, still in development, would represent the most aggressive theft deterrent Apple has built into the iPhone in years.

The iPhone anti-theft upgrade would rely on the Apple Watch to sense the snatch before the phone leaves the user's proximity. According to the report, the feature uses a combination of motion sensors and wireless signals between the Watch and iPhone to differentiate between a casual pick-up and a theft. If the iPhone is pulled away abruptly and the Watch registers the user not actively interacting with the phone, it triggers an instant lock — preventing the thief from accessing any data or making transactions.

Apple has a long history of adding layers of protection against iPhone theft. Activation Lock (introduced in 2013 with iOS 7) made stolen phones nearly unsellable by tying them to the owner's Apple ID. Find My later helped users track and remotely wipe devices. But theft remains a persistent problem: the FBI reports millions of phones stolen each year in the U.S. alone, often snatched from hands in public. This new feature takes the fight to the very moment of theft.

The requirement of an Apple Watch — a $249+ accessory — may limit the feature's reach. Only roughly 30% of iPhone owners also own an Apple Watch, according to industry estimates. Analysts suggest Apple may eventually bring a similar capability to AirPods or even a future version of iOS that uses only the phone's own sensors, though the Watch's ultra-wideband chip and processing power likely make it the most reliable partner right now.

Informed observers note that this is a classic Apple move: using its ecosystem as a competitive moat. “Making the best theft protection exclusive to Apple Watch users gives people another reason to buy a Watch,” said one security researcher who spoke on background. The feature also aligns with broader industry trends: Google introduced a theft detection lock for Android in 2024 that uses AI and motion data, though it works without a wearable. Apple's approach trades broader accessibility for deeper integration.

What comes next? The feature is reportedly in early testing and could ship with a future version of iOS — likely iOS 19 or later, expected in fall 2026. Apple may also expand the feature to work with other devices in its ecosystem or introduce a Watch-free mode using just the phone's sensors. Either way, the iPhone anti-theft upgrade signals that Apple sees snatch-and-grab thefts as a growing threat worthy of a dedicated security hardware play. For now, if you want your next iPhone to lock itself when snatched, you might want to start wearing a Watch.