[CNET] Apple AirTags hands-on: These $29 trackers are small and impressive

“But it gets better. If you have an iPhone 11 or 12 you can use Precision Finding to locate your AirTag. And that’s because the AirTag, like the iPhone 11 and 12, has a U1 ultrawideband chip to determine the exact distance and directions to get you to it. A really cool interface pops up on your iPhone to guide you to the item and AirTag. It uses the iPhone’s cameras, its ARKit software, its accelerometer and gyroscope, along with data from the AirTag to create a visual guide that, with haptics and sound, direct you to your lost item. Precision Finding works within Bluetooth range of the AirTag”
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