I get VO2 Max when I start the run on my phone. As a matter of habit I start the run from the phone because I found that it has been more liable. I would love to start from the watch but I still have some reliability concerns.
Does the music display on your watch instead of the Nike Run Club app stats when you start a run on your iPhone? (Assuming that’s what you use) Since installing iOS 11 & Watch OS 4, once I glance down I just get a music overlay of what’s playing.