It's definitely not too late, because there is not a single smartwatch on the market right now that has reached deep adoption. The Moto 360 has serious battery

It's definitely not too late, because there is not a single smartwatch on the market right now that has reached deep adoption. The Moto 360 has serious battery concerns and the Pebble Steel (the best smartwatch available right now IMHO) runs a fairly limited OS (which, on the plus side, gives it fantastic battery life).