How accurate are sleep tracking devices?
Sleep tracking devices can vary in accuracy. Most consumer devices provide estimates based on movement and heart rate.
What factors can affect their accuracy?
Factors include the type of device, how it's worn, and individual sleep patterns. Some devices may struggle with deep sleep detection.
Are there any studies on their effectiveness?
Yes, several studies have compared sleep trackers to polysomnography, the gold standard for sleep measurement, showing mixed results.
Which devices are considered the most accurate?
Devices like the Oura Ring and Fitbit have received positive reviews for accuracy, but it's best to check recent studies for updates.
Can I rely on these devices for health insights?
While they can provide useful insights, it's important to consult with a healthcare professional for serious sleep issues.
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