The Polar Unite Fitness Watch lets you enjoy ready-made workouts by connecting to FitSpark—a smart coach designed specifically by Polar. As a result, it’s a great option if you’re new to fitness or looking for ways to stay motivated and challenged. This gadget comes with many other features, too. First, it includes a fitness test so you can assess your health in just five minutes. It’s also like having access to a fitness trainer with regular feedback to describe your..