Ultra Wideband (UWB) features require a paired UWB supported device. UWB availability varies by region. When use of UWB is prohibited in your region, swipe up from the home screen of your paired phone, tap Settings then search for UWB to find the switch to turn it off.
In the US, UWB devices may not be employed for the operation of toys. Operation onboard an aircraft, a ship or a satellite is prohibited.