The Apple Watch provides highly accurate measurements of heart rate and step count, but their estimates of calories burned can be significantly off, according to a new peer-reviewed meta-analysis ...

The study showed that when it came to tracking calories burned, the Apple Watch was inaccurate nearly 28% of the time. The energy expenditure inaccuracy was observed across all types of users and ...

While your Apple Watch excels at measuring some fitness metrics, when it comes to calorie counts, it struggles and flails like me on a too-rare gym visit. A new study raises questions about how much ...