It's still early days for Fitbit (NYSE: FIT) in smartwatches, but there's no denying that the company has been pulling the right strings to make a name for itself in the space. The wearables specialist has made a solid transition from selling fitness trackers to smartwatches in a very short time.Its first smartwatch, the Ionic, was launched last September, and now Fitbit is getting 55% of its total revenue from this device category thanks to the addition of a more pocket-friendly Versa smartwatch.