With Sonos adding lockscreen controls to iOS we (ok, my son) realized this likely meant it would also be controllable from an Apple Watch paired to the same iPhone. Sure enough, it is, and that's because whatever music is controllable from your iPhone's lock screen is also controllable from the "Now Playing" glance on Apple Watch. Note that the Now Playing section of the Apple Watch Music app is less likely to show this data, but sometimes it will appear there, too. The "Now Playing" glance, however, has proven 100% reliable in all of our tests.
