What are /r/SmartWatch2's favorite Products & Services?

From 3.5 billion Reddit comments

There is a camera built in the extension (in the phone part). I've got Xperia Z2, but on Cyanogenmod12 (no Sony apps) and it works. It pops up simple camera app when using the extension. Or try this one: https://play.google.com/store/apps/details?id=net.watea.sw2.rshot - even better app.