Most would agree VO2 Max has become piece of the wearable tech furniture. Especially assuming it's a smartwatch or a wellness tracker that needs to assist you with watching out for your wellness. Fitbit has made it the reason for its "Cardio Wellness" score, which is accessible on any semblance of the Fitbit Charge 5 and the Fitbit Versa 3. The Apple Watch presently creates its...