Apple has said very little about how the Apple Watch leverages wifi, so it's been a bit of a guessing game. I initially assumed that if your Apple Watch and iPhone were on the *same* wifi network, the Apple Watch would simply use wifi to connect to the iPhone and would be fully functional. This would be *awesome*, as once you got home you could simply drop your iphone and use your watch anywhere in the house to take calls, read emails, interact with apps, etc. However, I don't think the Apple Watch and the iPhone talk to each other at all over wifi. Instead, the iPhone just shares known wifi network info with the watch ahead of time, and the watch then connects to wifi to perform some basic functions directly via the Internet. Am I understanding this correctly? If so, I hope they update it to allow full functionality when the watch and the iPhone are on the same wifi network (similar to the iPad's ability to make and receive calls if it's on the same network as your phone).