Horace wants to know how UWB radio technology works in the Apple AirTags. Is it like Bluetooth beaconing? Leo says it's more precise. The bandwidth is very wide at 500mH. And it's what enables one to find with precision a device within inches.
Ultra Wide Band
Sam joins Leo to talk about Ultra Wide Band (UWB) which is coming to mobile phones and cars. The iPhone 11 has UWB, but it's not turned on yet. It's wireless band technology that operates within 6-8 GHz. Google's Pixel 4 will probably have a UWB chip as well. The benefit is going to be that you can directionally connect with devices. It can work with IoT devices, and carmakers will shift to it for keyless entry. It's not uncommon for manufacturers to put hardware into a device even when the software isn't ready, and then turn it on with a firmware update.