How are fitness trackers accurate?

Question

How do Apple watches, FitBits, etc. accurate? Are they truly precise?

In: Technology

Answer 1

Short answer? They’re not. They use algorithms based on things like movement (steps) to estimate calorie burn to varying degrees of success.

*However*, a good fitness tracker can still be worthwhile. That’s because a good tracker is usually *consistent*. That means that once you get it dialed in, you can use it fairly effectively for things like weight loss.