My Fitbit Air test revealed the flaws of calorie counting with a health tracker - here's why

After testing the Fitbit Air's heart rate data against a highly accurate chest strap monitor, it became clear that calorie counting via health trackers like Fitbit Air can be misleading. The discrepancies revealed significant inaccuracies in the calorie data provided by the Fitbit, suggesting that these devices might not be as reliable as we think when it comes to tracking our diet and exercise. This raises questions about the overall effectiveness of relying solely on such technology for health and fitness, emphasizing the importance of cross-verifying data with more precise methods.