Note on Bluetooth

The Apple Watch communicates with your iPhone via Bluetooth. This creates a trade-off when using the Bluetooth Shortcut.

The Trade-Off

iPhones share a single antenna between Bluetooth and 2.4 GHz Wi-Fi. Disabling Bluetooth improves Wi-Fi performance (and therefore live view speed), but it also disconnects the Apple Watch.

You have two options:

1. Bluetooth off — faster live view on 2.4 GHz Wi-Fi, but no Watch control.
2. Bluetooth on — Watch works, but live view may be slower on 2.4 GHz Wi-Fi.