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Timestamps:
00:00 Background
01:47 Whoop Strap 4.0 Features
04:22 Heart Rate Test Spinning
08:47 Heart Rate Test Cycling
11:20 Heart Rate Test Weight Lifting
14:11 Heart Rate Test Other Workouts
15:02 Sleep Stage Testing
20:10 Sleep Stage Test Overview
21:44 Body/Skin Temperature Test
24:16 Other Good and Bad Features
25:11 Health Tracking Conclusions

Intro: The Whoop strap as a device mostly focuses on health tracking, and not so much on smartwatch features. This also means it has no screen or any interface at all on the device itself, and it is mostly designed as a health monitoring device. The Whoop Strap keeps track of your health in several ways: it can measure your heart rate, skin temperature, breathing rate, oxygen saturation and heart rate variability. Your heart rate will be measured throughout the day and night, and if you start a sports activity, the frequency of measurements will go up, and the app will show a graph of your heart rate after the workout. What I believe is potentially even more important, is that throughout the night it will measure your resting heart rate, respiratory rate, heart rate variability, skin temperature and blood oxygen levels. Measuring this during the night is one of the optimal times to measure these metrics, and the app will show you if there were any deviations from your normal range, which could indicate there are some health issues. An increased skin temperature could for instance indicate that you are suffering from an infection such as COVID19 or the flu, and a high resting heart rate could be an indicator of poor recovery. One of the benefits of the Whoop Strap is that you can wear it in many different locations, and I personally prefer to wear it on my biceps, which is also what most of the test results in this video will be based on. However, Whoop offers many more options of where to wear the device itself, and the device should be able to work out where it is located automatically. You can for instance wear the whoop strap 4.0 in your boxers, thong or in a compression top. The major downside of the Whoop Strap for me is the cost. Whoop has completely embraced the subscription model, charging you a certain amount of money each month to use their device and app, but charging you no money upfront for the device itself. The main question I will try to answer in this video is: can we trust the metrics and measurements the Whoop Strap 4.0 provides?