Wearable Tech: How Accurate Are Fitness Trackers Really?

Fitness trackers have significantly improved over the years, yet their accuracy can still fluctuate based on what they are measuring. When it comes to counting steps, most devices tend to be quite dependable, particularly for general daily activity. However, metrics such as heart rate, calories burned, and sleep patterns may not be as accurate. For instance, wrist-based heart rate monitors can be affected by movement, skin color, or how snugly the band is fitted. Calorie calculations often depend on algorithms and can vary widely among different brands. Sleep tracking provides a general overview but should not replace clinical tools like polysomnography. In summary, fitness trackers are beneficial for identifying trends and maintaining motivation, but their data should not be regarded as completely accurate—especially when it comes to health-related decisions.

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