The Series 2 is the best smartwatch you can buy, but it's not the best sports watch. Even with the waterproofing and built-in GPS, it's best if you think of this as a fitness tracker -- albeit, a very stylish, feature-rich fitness tracker.
Faster performance and longer battery life than before; watchOS 3 feels much more intuitive; Waterproof design means you can take it swimming; Built-in GPS is good for walkers; hikers and casual joggers; Screen is more than twice as bright; Works with the same bands as the first-gen watch
Average pace calculations in workouts are often off the mark; Distance tracking in running falters if you stop to walk; Activity app is missing features you'll find in other fitness apps; More watch faces; please; The Series 1 watch offers many of the same features for $100 less