While Casio Databank watches have existed for decades, wearable, internet-connected technology has existed in even the most vague form for at best 15 years, anything resembling a practical product in that area has existed for at best 5 years, much more realistically 2 years, technologically speaking there are zero wearable computing platforms that have any depth, stability, or maturity to them, and there is a total of one product on the market, period, that's sold more than a handful of units, and that one's only been available for three months.
Further, the products that are available are evolving and changing at an extremely rapid pace. Unlike Desktop computing, or cars, or televisions, the SDKs are in rapid flux, native apps aren't even available for the most successful platform yet, competitors are entering and exiting the market all over the place, and making a prediction about what things are going to look like even a year down the road, let alone ten, is nearly impossible.
I think that's the exact definition of an infant market.
It might never grow--maybe Apple Watch sales will peak and peter out in a few years and nobody else will produce a compelling wrist-wearable, or maybe the actual wearable market will end up focused entirely on something other than the wrist--glasses, clothing-integrated computing, a neural-linked earpiece. But whatever happens, making any predictions about it at this point are ridiculous, since the market is so new, and in such rapid flux. It's like trying to prognosticate about the smartphone market when the first Blackberry had been out for three months, or even if you want to be generous when the first iPhone had been out for three months. It's meaningless. The first iPhone, in objective modern terms, sucked, but fast forward 8 years and the computing world as a whole--how and where people do their computing--looks nothing like it did prior.
