The Charge 6 is Fitbit's premium band-style fitness ... stress levels. The Versa 4 can also monitor for stress, providing a daily Stress Management score, but it does so with less data than the Charge ...
We have tried and tested the best fitness trackers: Whether you are a keen runner, outdoor adventurer, or health-conscious gym goer, we have a wearable that will help you achieve your goals. The right ...