I disagree completely. The players in those markets are so big that they are constantly on the look out for differentiation. It just so happens that in the watch market analogue is worth more than digital (ie $30k for a fancy time telling watch and $350 for an apple watch). Digital watches have been big for a while and so they have a designated place in the market. Digital rings, shoes, bracelets... not so much.
The equivalent of the $30K analogue watch is the $17K Apple Watch Edition. Most smartwatches come with analogue watchfaces standard, but it's really a new product category, so it'll be interesting how it evolves as a fashion accessory.
players in those markets > example Nike:
Nike makes shoes. They are looking for differentiation in that market. They have massive resources. So it makes more sense for Nike to make a new model that incorporates technology than it is for them to make something that attaches to their existing models (and presumably everyone else's).
