8 best (and most accurate) sleep trackers of 2022

The research that started to analyze sleep has long been polysomnography, which analyzes oxygen levels, heart rate and breathing, eye and leg movements, and with EEG or EEG during sleep. they sleep. The second is the kind where they stick 14 electrodes on your body to detect electrical activity in your brain, heart rate, and muscle movements.

An EEG can be used to study your brain waves as you navigate through the different stages and cycles of sleep. However, a wearable smartwatch or fitness tracker on your wrist is far from your brain.

The most popular wearables like Fitbit, Apple Watch, Garmin watch, Galaxy Watch, etc., use a combination of heart rate monitoring and heart rate variability (HRV), movement, breaths per minute, and sometimes even both. skin temperature. Sleep cycle trackers then use algorithms to make an informed prediction of what your sleep cycle should look like, based on your body’s response.

One 2017 compared sleep polygraphs with the performance of the Fitbit Charge 2 in 35 adults and found that the Fitbit detected the onset of sleep with 96% accuracy, but exceeded the sleep time by 9 minutes.

In regards to detecting sleep cycles and stages, the study found that Fitbit detected light sleep with 81% accuracy, deep sleep with 49% accuracy and REM sleep with accuracy. 74%.

One Newer study published in April 2022 compared the performance of the Fitbit Alta HR with EEG results worn by all 40 college athletes simultaneously while sleeping. This study suggests that the Fitbit is a useful tool for athletes’ sleep management because it provides satisfactory consistency with the EEG in tracking sleep onset, sleep duration, and cycle. sleep period.

While not 100% accurate, Fitbit was found to have a strong correlation between total sleep time and between the percentage of deep sleep between sleep onset and baseline REM sleep.


News7F: Update the world's latest breaking news online of the day, breaking news, politics, society today, international mainstream news .Updated news 24/7: Entertainment, the World everyday world. Hot news, images, video clips that are updated quickly and reliably

Related Articles

Back to top button