Summer is officially here, and if you're looking for a budget-friendly activity program to help you improve your fitness, you're in the right place. Amazon has the best-selling Fitbit Alta HR on sale for just $74.98. That's a discount of €55 and the best price we've found for the fitness follower. The Fitbit Alta HR is designed for everyday use, with an ultra-thin and light design. The highly water-resistant Alta HR offers continuous heart rate monitoring and tracks steps, calories burned, and popular workouts like running and yoga. The activity monitor can even track your sleep and give you useful information to help you sleep better. The Fitbit app can help you meet your fitness goals with personalized exercise videos and the ability to log and track your activity to see your progress. The Alta HR packs a battery life of up to seven days and offers basic smartwatch features like call, text and app notifications. This is not only a fantastic price for a Fitbit activity tracker, but also a great deal. The Alta HR is currently on sale at a lower price than the basic Fitbit Alta. Thanks to HR, you benefit from heart rate monitoring and a slightly longer battery life.