Christian Zibreg for iDownloadBlog discovered a faster way to update his Apple Watch:
Disabling Bluetooth on your paired iPhone at the right time will force your Apple Watch to connect to your iPhone via the faster Wi-Fi protocol.
Read through to find out exactly when you need to disable Bluetooth during the update process for this to work.
This is great, because when I update mine, I swear I have been transported back to 1998 with a 56k modem. I have always wondered why Apple doesn’t broker this process over Wi-Fi by default. It sure would make for a better experience. I’ll have to give this process a try with the next update.