Polysomnogram + Jawbone UP3Įven though the Jawbone UP3 is now discontinued, this 2017 study is interesting because 17 patients wore the UP3 while undergoing a polysomnogram in a sleep lab. The consumer sleep tracker could be a useful tool for measuring sleep duration in longitudinal epidemiologic naturalistic studies albeit with some limitations in specificity. However, it differed when it came to sleep stages, time to fall asleep and time of first waking. They found the Versa was similar to the EEG for total sleep time, time in bed and calculated sleep efficiency. When my Apple Watch has less than 50% battery, I charge it before bed, too.Ģ0 people used the Versa for 14 nights, as well as a portable EEG. But Ive missed nights of charging plenty of times, too. Sometimes I hit a nice streak and make it a couple weeks in a rowIll miss one day but then charge the next night. I charge my Apple Watch every night before going to bed. This is based on the goal of getting ~4 hour in bright conditions with heavy usage, up to ~6 in normal conditions, up to ~10 in dim conditions. The lithium-ion batteries in both the 38mm and 42mm models are rated to last for 18 hours. And sleep tracking will drain the battery life the most because the wearable will have to work harder to monitor your vitals.Ī common concern expressed by Apple Watch users is battery usage. It didnt matter if I used the watch during the day, it still wore down throughout the evening, leaving me with no way to get all of my data synced to my iPhone.Īll that activity means your Apple Watch is going to need a charge. How accurate is sleeping tracking on the Apple WatchĮver since I got my Apple Watch, Ive started tracking my sleep using its built-in feature, but it wasnt long before the battery died before the end of the day.
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