Fitbit Versa Lite and Ace 2 launched with affordable and all of the core fitness tracking features Fitbit has launched new devices meant to make tracking your activity all the more streamlined, and without breaking the bank. The Versa Lite and the Ace 2 feature all of the core fitness tracking features, all in more affordable packages. The Versa Lite, an everyday smartwatch, includes the most beloved features of the original Versa watch, including a four-day battery life, activity and sleep tracking, and 24/7 heart rate monitoring