There's an interesting update in the documentation for ASKit AccessorySetupKit is available for iOS and iPadOS. In watchOS 26 and later, if someone sets up an accessory with your iOS app by using AccessorySetupKit, a companion watchOS app can also use CoreBluetooth to communicate with the new accessory and any other accessories. I was playing so far, in watchOS 26, with: retrieveConnectedPeripherals(withServices: retrievePeripherals(withIdentifiers: But with no luck atm to make it work. I can confirm instead that now that if I run your app @SuperTurboRyan I can use ASKit in iOS and scan in watchOS without hitting anymore the permission error.

Here's the Radar entry - FB12389174