U1
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The Apple U1 is an ultra wide-band (UWB) chip used in iPhones, Apple Watches, AirTags, and the AirPods Pro 2.
It was first introduced at Apple's By Innovation Only Event on 10th September 2019 and debuted with the iPhone 11 series.
It's identified internally as T2006.
The part number is TMKA75.
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