How Accurate are Smart Watches?
Wearable devices have as much as 20% error when measuring heart rate, and caloric expenditure measurements can be off by as much as 100%. Most wearable fitness devices overestimate total sleep time and underestimate wakefulness after sleep onset.
SMART WATCH ACCURACY KEY TAKEAWAYS
- Are wearables accurately tracking and reporting things like your REM and deep sleep, and what information should we actually be paying attention to?
- Sleep isn't just about quantity, it's also about quality. And there's also some evidence to show, you know, how you feel about your sleep can then impact your mood and your performance.
- Research shows that most wearables are not accurate when it comes to sleep stages, it is accurate though when it comes to total sleep time, duration, sleep onset latency.
In this episode of the Blueprint, Dr. Erik Korem discusses sleep, the accuracy of popular wearable trackers & the role of data in improving your sleep.
- This podcast episode features Dr. Erik Korem, CEO of AIM7, and Dr. Amy Bender, the Director of Clinical Sleep Science at Cerebra & adjunct assistant professor of kinesiology at the University of Calgary. Dr. Bender received her PhD and Master's of Science degrees in experimental psychology from Washington State University, and she specializes in sleep research.
- The importance of both sleep duration and quality for overall sleep health
- The potential impact of negative feedback on sleep quality on performance
- The importance of individualized sleep recommendations and the role of wearable devices in sleep tracking
- The relationship between sleep, stress, and performance
- The benefits of consistent sleep patterns and the impact of disruptions to the sleep schedule
- The importance of assessing sleep quality and the potential role of sleep disorders in poor sleep
- The role of the glymphatic system in waste removal and the potential impact of sleep on brain health
- Tips for improving sleep quality, including establishing a consistent sleep routine, optimizing the sleep environment, and managing stress.
"It's not just about quantity, it's also about quality." - Dr. Amy Bender
"How you feel about your sleep can then impact your mood, your performance." - Dr. Amy Bender
"So if I tell you to get 10 hours of sleep and you have an underlying sleep disorder, there's gonna be a problem there." - Dr. Amy Bender
"So if you're getting less than seven hours of sleep, that's when you start to see negative impacts on cognitive performance, mood, and physical health." - Dr. Amy Bender
"Establishing a consistent sleep routine, optimizing the sleep environment, and managing stress are all important factors in improving sleep quality." - Dr. Erik Korem
Korem, Erik. “Accuracy of Consumer Wearable Technology” AIM7.com, March 8, 2023, https://aim7.com/post/accuracy-of-consumer-wearable-technology