I own both a Series 3 and an XR and have never upgraded unless one of my devices was broken/dead etc. If the next iPhone though sticks to the renders that Jon Prosser was going on about (link), I might *consider* it (as a speculative 14 'mini' would stoke my nostalgia for the 4S that got me into the ecosystem in the first place). Not sure what could get me to upgrade my watch though.