I've been having this problem for a year now-- in some areas of my house the Apple Watch is definitely out of BT range of my phone-- nothing works, Siri, apps, etc. but if I move a bit farther away it switches to wifi and starts working again. What's annoying is this happens when my iPhone is on the second floor and I'm in the basement. The Apple Watch thinks it has Bluetooth but it really doesn't. --- Post Merged, May 10, 2016 --- Does anybody know which logs I can read to figure out what's going on on my device?