Google Fit lets you measure everything from your stress levels to your respiratory rate ... they really push that with their motto: Best workouts, always free, always on. The FitOn app offers ...

Enhance lung health and performance - Pick up the ‘dumbbell for your diaphragm’ to improve lung capacity, efficiency and endurance through science-backed methods ...

Since these devices are highly personal, I’m sharing recommendations for the best fitness trackers for ... I was also able to create my workouts within the Garmin Connect app and load them ...