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One of the silicon improvements in the iPhone 15 series is the new second-generation Ultra-Wideband chip. This chip can communicate with other devices that have the same chip at extended range, compared to the U1 chip found in previous-generation iPhones and AirTags.
A new Find My feature allows iPhone 15 users to find nearby friends who also have an iPhone 15, with the Precision Finding interface that shows continuously updating distance and direction indicators. You can see it put to the test in this video by Teknófilo.
