Apple is rolling out iOS and iPadOS 13.3.1 to compatible devices. The update size for our iPhone XR is 275MB but depending upon your device, your mileage may vary. The update largely features bug fixes and performance improvements. However, one interesting option being added by the 13.3.1 update is the ability to control the use of the U1 Ultra Wideband chip found inside the iPhone 11 series of devices. Change log If you recall, the U1 chip inside the 2019 iPhones enabled them to to locate and be located by other UWB enabled devices with pinpoint accuracy within its range....