The Next Generation Apple Watch Could Identify Users by Their Heart Rate
The U.S. Patent and Trademark Office published an invention today that suggests the next Apple Watch could identify its owner simply by checking their heart rate.
Apple's patent application is titled "User identification system based on plethysmography" and describes how a pulse oximeter is used to determine the biometric signature of a user's cardio rhythms. This data could then be used to identify the wearer and unlock the watch in a manner similar to Touch ID on the iPhone.
The system works similarly to existing monitors, by projecting light on the user's skin and measuring how much of it is absorbed and reflected back to the device. The measurement can then be used to determine the amount of blood present in the vasculature. According to the patent, the data gathered by the two photosensors is either stored or compared against previously saved information to positively identify the user.
In an associated patent also published today, the invention is extended to take in data from motion sensors like accelerometers and gyroscopes to determine user movement. Certain gestures, for example raising the device from waist height to head height, trigger the authentication process.
AppleInsider notes that the system could replace Touch ID during Apple Pay payments and further reduce the watch's reliance on iPhone, although it's unclear if heart rate data can be a unique enough identifier to ensure the same level of security.
Popular Stories
iOS 19 will not be available on the iPhone XR, iPhone XS, or the iPhone XS Max, according a private account on social media site X that has accurately provided information on device compatibility in the past.
The iPhone XR, iPhone XS, and iPhone XS Max all have an A12 Bionic chip, so it looks like iOS 19 will discontinue support for that chip. All other iPhones that run iOS 18 are expected...
Apple today released iOS 18.4 and iPadOS 18.4, the fourth major updates to the iOS 18 and iPadOS 18 operating system updates that came out last year. iOS 18.4 and iPadOS 18.4 come two months after Apple released iOS 18.3 and iPadOS 18.3.
Subscribe to the MacRumors YouTube channel for more videos.
The new software can be downloaded on eligible iPhones and iPads over-the-air by going to...
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices.
Below, we recap key changes rumored for the iPhone 17 Pro models as of March 2025:
Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
Apple today released new firmware updates for all AirPods 4 and AirPods Pro 2 models. The new firmware is version 7E93, up from the 7B21 firmware that was installed on the AirPods Pro 2 and the 7B20 firmware available on the AirPods 4 and AirPods 4 with ANC.
It is not immediately clear what new features or changes are included in the new firmware, but we'll update this article should we find ...
Apple's big developer event is a little over two months away, and rumors about what we can expect to see in Apple's next major operating system updates are becoming increasingly frequent.
A public release of iOS 18.4 is also imminent with a number of updates and improvements, although we won't be getting the major Apple Intelligence Siri upgrades that had reportedly been planned for this...
Apple today released macOS Sequoia 15.4, the fourth major update to the macOS Sequoia operating system that launched in September. macOS Sequoia 15.4 comes two months after the launch of macOS Sequoia 15.3.
Mac users can download the macOS Sequoia update through the Software Update section of System Settings. It is available for free on all Macs able to run macOS 15.
With...
Multiple sources have claimed that iOS 19 will introduce a new design with more translucent buttons, menus, notification banners, and more, and there is now another clue that points towards this glass-like appearance.
Bloomberg's Mark Gurman today said the new design project is codenamed "Solarium" internally. A solarium is a room with glass walls that allow in plenty of sunlight, so this...
Apple today released watchOS 11.4, the fourth major update to the operating system that runs on the Apple Watch. watchOS 11.4 is compatible with the Apple Watch Series 6 and later, all Apple Watch Ultra models, and the Apple Watch SE 2.
watchOS 11.4 can be downloaded on a connected iPhone by opening up the Apple Watch app and going to General > Software Update. To install the new software,...