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flag New study finds Apple Watch accurate for heart rate and steps but unreliable for calorie tracking.

flag A new study from the University of Mississippi analyzing 56 studies found that Apple Watches are highly accurate for tracking heart rate and steps, with average errors of 4.43% and 8.17%, respectively. flag However, the device's calorie burn estimates are less reliable, with a 28% error rate. flag While the Apple Watch's performance has improved over time, researchers suggest that it should not be relied upon for precise calorie tracking.

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