[karpodiem]

I agree that having this tethered to a stationary hub inhibits the scope of this being a device which can be worn anywhere.

If anything I could see the iPhone acting as the hub (for the first few generations at least) in the same way the iPhone is the hub for the Apple Watch. Not sure what protocol they would use to communicate, Bluetooth doesn't have the bandwidth and Wifi is still a power hog.

[cwe]

UWB that is in the iPhone 11's.