"That's a nice watch," said my colleague, about an hour after I strapped the Fitbit Versa to my person. The new fitness tracker, the company's third pass at a smartwatch you can wear for days at a time, is a welcome update to its butt-ugly predecessor. The $299.95 Versa will more than likely satisfy any fitness enthusiast, casual athlete, or health nut looking for an exercise-centric (and long-lasting) wearable, but the dearth of available apps combined with the closeness in price to other, more capable wearables make it a tough sell for nerds who need more.