longevity science
Apple Watch vs Fitbit - The Beginner's Longevity Science Showdown
One-minute heart-rate misread can shave up to a year off your future healthspan, so choosing the right wearable matters. In this showdown I compare Apple Watch and Fitbit through the lens of longevity science, looking at accuracy, data usefulness, and real-world impact. Medical Disclaimer: This article is for informational purposes