FitBit sleep prediction: scientific test (full year)!

[@djame2517]

Dude! This is some really good work. This is actually worth publishing properly I'd say

[@TheQuantifiedScientist]

Thanks Dillon! We are going to publish different aspects of the larger study, and it might even be a good idea to also include a paper about the accuracy of consumer sleep trackers indeed! Have a great day :-D

[@djame2517]

@@TheQuantifiedScientist Please share when it is finished I'd be super keen to see the results

[@TheQuantifiedScientist]

@@djame2517 For sure! Thanks :-)

[@prashantkoirala609]

He looks so Happy about what he is doing. 💙

[@Frazzy87]

I’m an engineer and crunching data is something I do quite regularly at work. Stumbling upon your channel is probably the best thing that’s happened to me on KZbin. Thank you did these detailed analyses and I hope you continue this GREAT work through your life, helping others on the way.

[@br0wnbess994]

So glad I found this youtube channel

[@TheQuantifiedScientist]

Thanks so much!

[@PFFF785]

Boy, you are incredible! Your video is soo good and your effort is so consistent. Besides the well thought approach, which is incredible, your cleverness and compasion are of admiration because this video will help people like me, with insomnia, choose a device that is easy to wear and accurate, to some extent, as you presented. The data is useful when taking some medicine, to see the effect as well as predicting how many hours we have to sleep to compensate the lack of sleep from the night. So yes, the data is helpful in improving the sleep. Thank you for you existance! 🤗🙏❤

[@andrewlebedev7749]

Thanks for providing such high quality data! So in summary, FitBit was 73% accurate at correctly identifying the 4 sleep stages. Of the 27% that it misidentified, the vast majority (25%) was during the following cases: light sleep misinterpreted as deep sleep (9.2%); deep sleep misinterpreted as light sleep (2.1%); REM sleep misinterpreted as light sleep (3.9%); light sleep misinterpreted as REM sleep (6%); and light sleep misinterpreted as awake (3.8%)

[@FlorinCirciu]

Holy ..dudee you're the best!!! Your channel needs more recognition! A LOT MORE!

[@TheQuantifiedScientist]

Wow, thanks! This video is actually my first real youtube video I made. I hope you like some of my newer ones too!

[@castellum40]

Just leaving a reply to let the yt algoritm realize this video is brilliant

[@RyanHellyer]

I find them very useful for confirming what causes me to have bad sleep. It also allows me to know when I'm likely to crash later in the day, as I can tell based on how poor my sleep was the night before.

[@bonkersdonkers7381]

So true! Now, I don’t use caffeine after 9 pm. If I drink caffeine after 9, my REM sleep gets tanked every time.

[@Rory626]

​@@bonkersdonkers7381 9pm?! You shouldn't be drinking caffeine after, like, 3pm!!

[@bonkersdonkers7381]

@@Rory626 you’re correct lol. I started doing that shortly after.

[@sianwilliams9550]

Thank you so much for doing this video. I am currently suffering with sleep related issues and after 2 sleep studies I just don't fall into any of the "normal" categories. My sleep specialist suggested having a sleep tracker might help with a bit more insight, altho not 100% accurate, but to be used as a guide for regular information. The only part of my current fitness tracker that doesn't record my data is the sleep tracker... So at least you have shown me it is worthwhile for me to purchase a fitbit! I'm currently booked in for my third sleep study and have no idea how u slept attached to those wires for an entire year!! But thank you for doing so!

[@TheQuantifiedScientist]

Hi Sian, Thanks for your comment! I think a sleep tracker might indeed be useful. Though keep in mind that these trackers are being developed to track (more or less) "normal" sleep patterns. The fact that trackers like the FitBit use actigraphy (so basically your movement) and heart rate means they are inherently limited. If you really want to track your sleep well, an EEG monitor that records brain waves is indeed best. However those wires are a nuisance indeed! At the moment I used this device: hypnodynecorp.com/ , for my daily tracking. It is a small EEG monitor with 4 electrodes. this could be something to consider (though I am unsure about the pricetag). I have no affiliations with this company, but I (or my colleagues) need to run some analysis to say more about the accuracy of the device. All the best with your sleep issues. Hopefully you'll get plenty of restful nights! And, stay safe with regards to the current Corona situation!

[@richlaue]

You might want to look into the Fitbit Charge 4 which is about to be released.

[@TheQuantifiedScientist]

@@richlaue thanks for the tip! I did not realise they were releasing a new FitBit. This one also seems to include GPS, very nice!

[@fujihobo]

The Quantified Scientist I bet you will buy the charge 4 in no time. If you go, can’t wait for your review. I would want to try the charge 4 with gps. I own a versa 2 but it track my arms movements even when I type.

[@greenfoodcrush2602]

Love your videos! I have had a Fitbit for years but just recently got serious with tracking my sleep. I was so curious how accurate it was. I’m completely ok with the 73% accuracy for 2 reasons. 1. There is no way I am ever going to obtain or wear a proper monitor like you had, and 2. I am only using this to improve my sleep . And I have! I notice the nights I eat right before bed my sleep is MUCH worse! I’ve also noticed I have better sleep when I walk at night. This is a totally fun experiment! I am now making sure I drink enough water, turn off my screen at least 1/2 hour before bed (aiming for 1 hour) not eating 4 hours before sleep, and trying some breathing/meditation before I sleep. I’m like a kid at Christmas not being able to wait to see what my sleep analytics look like and tweaking things and keeping a journal to see how much I can optimize sleep. Sleep is a pillar in the health of our bodies and brains so any way we can improve it is a plus for me!

[@josanrishi]

Amazing work! Loved the confusion matrix.

[@TheQuantifiedScientist]

Thanks for the comment! Really appreciated!

[@doctorlovera]

Great work. It is great to see such a dedication for a video.

[@TheQuantifiedScientist]

Thanks JC! Have a great day!

[@TheQuantifiedScientist]

Stay tuned for more videos in the future ;-)

[@VikasKM]

Most underrated channel, simply brilliant content

[@FreedomIsMyReligion]

Woooow! Such an amazing work man! I was wondering if my smartwatch was doing a good job and thanks to your study, I can sleep well, knowing that the data is pretty far. Thanks a lot for this!

[@kevin9795]

Great video and analysis! I appreciate the time you spent gathering the data. You definitely deserve more subscribers!

[@TheQuantifiedScientist]

Much appreciated Kevin! Hope I will be able to reach more people with my videos over time. Have a wonderful day!

[@fujihobo]

Another great video. Thank you for doing it. It takes time to produce one. Thank you Thank you! Greetings from California. Awww you should have thousands of subscribers. You have used scientific method to put it to the test.

[@TheQuantifiedScientist]

Thanks a lot! Yes, I only have a few subscribers, hopefully I can find a way to reach more people with my video's :-). I am still very new to this, and always feel weird promoting myself. I will see if I can use science to get more subscribers ;-) . Thanks for your comment, and greetings from Vienna!

[@andrewhwang2910]

Your videos are incredible, they put other KZbin videos to shame. One piece of feedback: The first-line treatment for insomnia is CBT-I, and a key principle in CBT-I is to restrict your time in bed. You don't want to spend significantly more time in bed than you spend sleeping, because then the bed becomes a cue for wakefulness. I noticed that in this video and the previous one, you suggest spending more time in bed. It might be worth reconsidering the wording there since spending too much time in bed seems to be a common pitfall of insomniacs, and insomnia is such a pervasive problem? Thank you for sharing this world-class content.

[@mikhailbulgakov1472]

You are incredibly dedicated to your subject. I would have difficulty falling asleep with all those wires from the EEG.

[@TheQuantifiedScientist]

Thanks! You get used to it quite fast, and it helps I sleep on my mack :-)

[@DanoSlingz]

Great video. I just bought a Fitbit Charge 4 a few weeks ago. 😎

[@AquasyOfficial]

Wonderful work! Thank you very much for this comparison. I really like having data about my sleep even tho it might be not as accurate but ~72% compared to EEG seemed like a wonderful result. I have myself a Fitbit Versa 2 and I hope it has hardware/software to do those things even better. Sleep tracker really helped me to focus more on sleep as I had assupmption that I sleep 15% more than it is :D. I wish you best wonderful person. Let your channel bring us more useful data to improve ourselfs! Big Like!

[@TheQuantifiedScientist]

Dear Roman, thanks for your kind words! I am happy I could help, which is the reason I put out these videos. I am still rather new to KZbin, and sometimes struggle to find the time to make them, however these kind of comments are a great motivation! I wish you many good nights of sleep (and well tracked nights at that ;-) )

[@claudioulloa6662]

Thank you for committing an entire year to conduct this study. Awesome work.

[@johanndaart7326]

Amazing video. I really appreciate your approach. 1 year of data might be even an overkill IMO.

[@TheQuantifiedScientist]

Glad it was helpful! Haha, we are also using the data for other things :-D, so the year did not go to waste. Have a great day!

[@memedumpster1402]

How do you not have 1k yet these videos are so great

[@TheQuantifiedScientist]

Thanks for your comment! Hopefully I will be able to reach and inform more people over time :-)

[@Paul-fi8dq]

Amazing job! Could be a series with testing some other popular smartbands and smartwatches like Mi Band or Apple Watch. Keep on goin' this way!

[@TheQuantifiedScientist]

Thanks Paul! Hopefully I'll get that opportunity :-)

[@hyperbeam8374]

Content of your videos are so amazing! Great work!!

[@TheQuantifiedScientist]

Thanks so much Hyper Beam!

[@nicolezhao109]

This is really awesome data!!! I am surprised that you are not having 1000000000 views yet. Thank you much for the review!!!

[@unkown.heisenberg]

Simply Phenomenal comparison analysis 🙌

[@TheQuantifiedScientist]

Thanks so much for the compliment Jabru! Thanks for commenting and have a great day!

[@unkown.heisenberg]

@@TheQuantifiedScientist we rarely find such good work on KZbin and people like you deserve for contributing to the community of research and analysis and bringing it to the larger audience. Keep up such great work Rob. I read about you over here : www.nemokennislink.nl/facesofscience/wetenschappers/rob-ter-horst/ Kudos to all the work that you have brought to the people out here & elsewhere also. I have one biology related Q that has to do with stress, temperature, brain and brain processing health/power. I think you might be knowing or at least aware of it or probably can share some inputs. Let me know if I can ask (or is there some specific platform where I can ask to you) ?

[@TheQuantifiedScientist]

@@unkown.heisenberg Thanks for the compliments! Happy to hear that my videos resonate with people. In the end my goal was to contribute something to this platform that would hopefully add value for people :-D . Please, feel free to ask questions, and I will do my best to answer! (Though of course I cannot promise anything, my speciality is more towards the immune system and data analysis. Luckily I have picked up a few things along the way about other subjects) Have a great day!

[@unkown.heisenberg]

@@TheQuantifiedScientist thanks for that Rob 😊 This Q. has come over in past as well, and thought may be I could share here and ask you. It's completely fine if you are not an expert or don't have inputs. I have noticed and found that during a physical activity or even in a non physical activity (doing strenous office work / research study), sometimes or often stress gets developed in the head and I have noticed that when you pour normal water (of normal temperature) over your head or body, the individual feels a little relaxed and better. But what I found much more intriguing is the fact when one uses ice cold water post over your head or body post such an activity (due to which stress arose), the individual feels at bliss and much more calmed down compared to the case when normal water was used. I exactly don't know if stress has to do something with head / body temperature and whether ice cold water is really a gd solution. This also reminds me of the fact that why some athletes use ice cubes to heal up their injuries faster, but don't know relation with that of brain activity - if it ice cold water affects brain activity in any way or does it help one to work better.

[@TheQuantifiedScientist]

​@@unkown.heisenberg Hi Jabru, interesting question! This is not my field of expertise, but I'd be happy to speculate. My first thought is that cold water is much more of a "shock" to the body than lukewarm water. It might be that the shock of the cold water forces you back into the moment, and to feel your body again, instead of being lost in the stressful situation. The moment of cold is of course followed by the comfort of warming up again, which might feel nice as well. Using ice for recovery of muscles I suspect of unrelated, but again, I am just speculating. If you have some kind of injury, ice can help reduce inflammation and swelling, and additionally athletes indeed use ice-baths for general recovery after strenuous workouts, though I don't know the science behind this. This is just my random collection of thoughts, and I'd be happy to hear yours! Have a great day!

[@montanag5974]

This channel is life!

[@Jack-kf1ij]

Great video! Very informative

[@TheQuantifiedScientist]

Thanks for the compliment Jack, really appreciated.

[@dasori3975]

I'd like to say that I really appreciate your efforts. Thank you so so much. All of your videos are really great and wonderful.

[@joemdo_southflorida]

Fantastic video and explanation... amazing that you did it for a full year to get some solid data. Thanks for your hard work and putting it all together into such a useful video :-)

[@datchentai3047]

Thank you for this interesting data. A way to make this a better study is to study more individuals and also by age groups to see how well the fitbit sleep tracker compares with EEG. Better still compare fitbit with medical polysomnography.

[@jeffuher7026]

I was diagnosed with severe sleep apnea. In using a CPAP it has brought a lot of improvements to my health. Adding a Fitbit Charge 3 with sleep tracking/rating it gives me a guideline to follow. My doctor agrees it is not 100%, but much better than not having any feedback. It has allowed me to see the advantage of various approaches and what their impact is - such as: regular bedtime, cutting down on blue light/screen time before going to bed, etc. It is not to be used to give a clinical view, but it definitely gives you feedback that is useful.

[@TheQuantifiedScientist]

Hi Jeff, thanks for your comment. I am happy to hear that you are making improvements to your health and that self tracking is helping! Sleep well :-D

[@andrewhirst8403]

Great. I was very interested in this, as my wife believes pretty much everything her Fitbit tells her, and I believe very little of it! It’s good to see someone at least attempting to compare the facts of the matter, somewhat scientifically. Thank-you. 👍

[@TheQuantifiedScientist]

Glad it was helpful Andrew! Thanks for commenting!

[@trisadam]

Such an amazing study! Great job, really interesting to watching and listening to you! Thanks

[@jrmint2]

I just found this channel and i love it...would love to see your favorites for each measures, heartbeat, steps, sleep etc.

[@omegaone5426]

Sir, I just logged in to congratulate you. This is the type of analysis that I was looking for. Congratulations it was really informative and useful to me. I would like to make a petition. Could you please make this analysis with Xiaomi miband 5 and 4. Since they are a more affordable option and quite popular it would be really nice to have some of your input on this devices. Especially with sleeping measurement. I am looking forward to buying a fitness tracker or smartwatch but first I would like to know performance on different devices regarding sleeping. Of course I subscribed! Hope you answer my comment. Have a good one. :)

[@TheQuantifiedScientist]

Thanks for your compliment! I will do my best to test these :-D. I tested the Mi Band 3, which for steps seemed to be really good, but not so much for sleeping. Other people have commented that the honor band seems to claim good sleep tracking too, and is also not so expensive. Once I can test again, I will try to include the Mi Band 5! Have a great day!

[@omegaone5426]

@@TheQuantifiedScientist Thank you for your reply. I am looking forward to it!

[@arthursingleton2236]

Well done. Ambitious and presented clearly. Thanks a bunch!

[@arrhythmiamia1148]

Extremely helpful. Thank you for all the hard work. Curious to know if you are planning to review more cheaper option like a Mi Band 5 ?

[@saudqawam9835]

you make the best vids when it comes to sleep tracking, are you planning to test the whoop strap or garmin watches anytime soon?

[@TheQuantifiedScientist]

Hi Saud, I just got a Whoop strap, and I have a garmin venu sq. I hope to check it out soon for sleeping. Have a great day!

[@lupero1234]

Amazing video!!!! Congratulations for your great work!!

[@conspiritor2]

Very good work bro! I subscribed to supporr you!

[@TheQuantifiedScientist]

Thanks man, appreciate it!

[@gooddaymate1171]

Very informative video, my friend. Cheers from Canada. Thank you!

[@TheQuantifiedScientist]

Thanks a lot! I actually just uploaded a sleep test with a newer fitbit, in case you’re interested: kzbin.info/www/bejne/hIq1omeXnbV9aMU. Cheers from Austria

[@imthedrivingcrooner]

ugh. now i wish you'd do every other fitness band... thanks a lot >:O but really thanks this was great content

[@TheQuantifiedScientist]

Hi Alvin, thanks for your comment and the compliment!

[@dennisreiss8748]

Thanks man, that's good work

[@positiv8509]

Thanks for your work, we need it!

[@Magnum756]

Great work & dedication. Subbed!

[@alvinviswas225]

Amazing work! Thanks a lot for this. 🙌🏻🙌🏻

[@Michael-ei3vy]

Awesome channel. Keep it up!

[@TheQuantifiedScientist]

Thank you Michael! Will do!

[@mikeinpcola5543]

Very interesting and very thorough, great job! I would like to ask your thoughts on your sleep test results from the EEG as compared to the "typical" ranges you mentioned. For example, your EEG had your awake stage at 1%, whereas you quoted typical around 10%. Similarly, your light sleep stage is typically in the 60% plus range whereas the typical number was 50%. So are your EEG results more typical or more unique due to your own personal physiology? Just comparing notes with you, definitely not overly critiquing you. Thank you.

[@LemurJackson]

This is dedication. Kudos

[@ConorFlynn-conorpro]

Is there any documentation of Fitbit’s sleep stage algorithm? I’m trying to figure out how it uses HR and movement to get 3 different stages??

[@TheQuantifiedScientist]

Hi Conor, when i had a look a while back it seemed to be all proprietary. So i don't think we will find out how the algorithm works exactly... Not sure if they trained a model based on EEG data they collected, but that seems like the most straight forward approach. Cheers, rob

[@yileiyilei5616]

Awesome video! Thank you so much! I’d be interested in the Apple Watch 3rd party app reviews.

[@TheQuantifiedScientist]

Hi Yilei, thanks for your feedback! Could I ask you something? Are you referring to the 3rd generation Apple Watch, or also specific apps that can be installed on the watch? Have a wonderful day!

[@nasermhd7566]

Bro great value video. Thank you. Can you do a video where to see witch smart watch track sleep more accurately please? Samsung Apple huawei and other products ...

[@dmahadeo]

Great analysis

[@tomjens2046]

Good that fitbit detects more deep sleep, because that means if you use fitbit to wake you up (not dureing deep sleep) it could rarely wake you up during actual deep sleep (because actual deep sleep is tracked correctly and even with some additional to be sure).

[@tomjens2046]

@Oana Cristina that is small problem for me (not detecting that you are awake). Most importantly for me is for it not to wake me up during deep sleep :)

[@Sumergocogit0]

Wow! Thanks for sharing. At 6:20 you start talking about percent of the 73.2 % it got correct, but clearly you are talking about percentage points. ;-)

[@aingeru5667]

great job man thank you very much

[@TheQuantifiedScientist]

Hi Aingeru, thanks so much for the compliment, it means a lot to get positive feedback! All the best, and have a great day!

[@hoelefouk]

Great work! I hope you test Samsung watches too in future!

[@kevinandrews6189]

Pewdiepie doing sleep studies now?

[@TheQuantifiedScientist]

Hi Kevin! Someone suggested I should be called PewDieScie (for science)

[@rahuls4863]

Very useful, thank you so much for their amazing data and analysis. 73% am confident now :) It is not 25% , not 100%, its 73%. That is very useful to know. Detailed comparison was helpful to know that we might need to reduce rem and deep sleep by some % to get more accurate data for our own conclusions.

[@carollittle1381]

Interesting. I think that the Fitbit overestimates my light sleep and underestimates my time awake.

[@GeoffY2020]

What's a better device than Fitbit that's still economical for personal use ? - - love your work and videos !

[@reeeeeeee-e2g]

Oura ring 2 please Edit: oh wait nevermind lol subscribed definitely!

[@TheQuantifiedScientist]

Haha, happy to help you out that quickly ;-)

[@reeeeeeee-e2g]

@@TheQuantifiedScientist thanks for the reply. Does the fitbit have smart alarm? I think based on your presentation, for me it's accurate enough. I'm looking for a smart alarm to prevent sleep inertia.

[@TheQuantifiedScientist]

@@reeeeeeee-e2g , to quote a FitBit press release: "Previously only available on Fitbit smartwatches, smart wake (coming soon) uses machine learning to wake you at the optimal time. Sleep Score provides deeper insights into your sleep with a daily look at the quality of your sleep, now available on-wrist for Charge 4. " So the latest Charge 4 will have it, but not the older ones. Have a great day!

[@RakeshRoshan295]

Great video 👌

[@MrBobWareham]

Is there a pocket step counter that you would recommend at a reasonable price, please

[@GrahamFielder]

Great video!

[@TheQuantifiedScientist]

Thanks Graham!!

[@leongilyadov1342]

Thank you very much for the video

[@harcha1816]

I doubt if fitbit testing team actually did such an analysis 😂 the confusion matrix 👏👏this is how the testing should be done 👍👍👍👍👍👍👍👍👍 but why 1year? Any reason?

[@TheQuantifiedScientist]

Hi Harcha! Thanks so much for the compliment! So, no there was no reason. It is just that I happened to have collected that much data at that point. :-P

[@Skans-Gustav]

Appreciate the amount of effort you put into these fine tests. Have you considered testing the Sleep Cycle app in a similar fashion? Perhaps not a year, but say a month or two?

[@Hans1994yout]

Very helpful thank you.

[@TheQuantifiedScientist]

Glad it was helpful! Have a great day!

[@Nikolateslaa11235]

I would be nice if you could compare the other fitbit functions to a professional device

[@TheQuantifiedScientist]

Hi Simon, thanks for the idea! If you are interested in the step counting accuracy: kzbin.info/www/bejne/Y4WVqamNppqYadE . Have a great day!

[@Walkabout]

Great video and effort, thank you. One question about your note about fitbit vs EEG thresholds for counting "awake"... isn't the fitbit then more accurate for catching "microsleeps" that would be missed by the EEG? It would be interesting to see what proportion of the "extra" awake times are 90s... Thanks again!

[@WonderfulWanderingTopics]

Thank you for sharing. I use the Apple watch with the Pillow app. Did you ever test that or will you ever? You do such a professional research analysis I will go to your channel and see what else you have tested.

[@TheQuantifiedScientist]

Thanks so much for the tip! I haven't yet, but I will test the Apple Watch for sure :-D

[@WonderfulWanderingTopics]

@@TheQuantifiedScientist Thanks. The newest version of the Apple watch has a simple version of a pre installed sleep app. It still needs a third party sleep app to track the different stages of sleep.

[@vallyplay7417]

Thank you so much for your tests. Subscribed! Are there any trackers on market that worth use?

[@Sunnytalor]

Great video. The most valuable feature of me that I want from a sleep tracker is a smart alarm to wake me while i'm in light sleep. Did u use something like this?

[@TheQuantifiedScientist]

Hi Sunny, the Fitbit Charge 2 does not support this, but the Charge 4 should support this I think. I have never tried it though, so I cannot say if it works. I could actually check my data: for the last 3 years I have been recording how tired and happy I felt waking up. I could see if this correlates with my final sleep stage! Thanks for the idea :-)

[@Alex-zq2yx]

Good content. I dig it!

[@TheQuantifiedScientist]

Glad to hear it Alex!

[@avenue8162]

I thought the top behind u said 'quarantine life

[@TheQuantifiedScientist]

Haha, that would have been a very accurate prophesy ;-)

[@constantinterteleac9595]

Thanks for your time, to do this comparison. As for 73% in my opinion is not that great, but probably because I'm working with numbers 😁

[@francescob.3019]

dude! thanks for this, can you do the same for other brands of sleep trackers? like samsung, apple and google. Of course not for a year, even a week could be enough to have an idea

[@TheQuantifiedScientist]

Hi Francesco! You read my thoughts! Yes, this is exactly what I am planning to do somewhere at the end of summer/in autumn after the new Apple Watch releases. Have a great day!

[@francescob.3019]

The Quantified Scientist that’s great to hear. I’m pretty worried about my sleep and i’m recently trying out a samsung watch active 2 and it registers a lot less deep sleep than the fitbit did. That seems more consistent with how bad I feel usually when I wake up. Seems more accurate so far... but who knows :( I look forward to more of your work!

[@TheQuantifiedScientist]

@@francescob.3019 Hope I can help! Sorry to hear about your sleep problems, hopefully they'll improve over time! In addition to the amount of deep sleep being correct, I think it is also important that it can distinguish "good" nights from "bad" ones. Do you feel your Samsung Watch is able to do that?

[@francescob.3019]

@@TheQuantifiedScientist it's too early to tell, I've had it for a couple of days. The samsung health app is definitely worse than the fitbit tho.

[@TheQuantifiedScientist]

@@francescob.3019 Thanks for your reply! If you could share your thoughts when you've had the device longer that'd be great! Have a wonderful day :-D

[@rodolfoassereto7626]

How the heck does this only have 3k views?

[@TheQuantifiedScientist]

Hi Rodolfo! General lack of charisma and production quality ;-) ? But you're right, I need to fix this. So I did some research, and I found this video of someone teasing a duck with 100x more views: kzbin.info/www/bejne/eGfOgKaupLhglck. I guess I need more ducks in my videos...? But seriously, thanks for the compliment, and if you have any suggestions for future videos, I'd be happy to hear them. Have a good day!

[@rodolfoassereto7626]

​@@TheQuantifiedScientist ​Yep, on my first channel I had myself made a video of Tony from GTA in underwear who catches a helicopter and it went 300k views. I may have suggestions but I don't think they matter: one should mostly meet the algorithm rules and users taste. As far as I cant tell, something fundamental is: speed and cuts, camera (which you have) and lights/colors. But I think all of this is extremely difficult and you already deserve more! The duck is from 2011 so it's all a different world 😂

[@rodolfoassereto7626]

Oh you meant ideas for videos. I might have some. Like, this sort of scientific comparison offers a thousand of applications. But apparently, people are not-so-interested. And finally, I only watched this because I'm a bit nerd and I have troubles sleeping and I just bought a Honor Band :)

[@TheQuantifiedScientist]

@@rodolfoassereto7626 , thanks for your reply! I'll definitely try to make some improvements. And... too bad about the duck, I needed an excuse to get a pet in these lonely times ;-)

[@toma8700]

Ma man! This is really good content! Very interesting to review these types of products. Btw nederlands? You sound dutch haha

[@TheQuantifiedScientist]

Hi Tom! Thanks so much for the compliment! Ik ben inderdaad Nederlands ;-) ! Have a great day!

[@toma8700]

Ga je meer van dit soort reviews doen? Zou wel graag willen weten of bvb Garmin ook nauwkeurig is

[@TheQuantifiedScientist]

@@toma8700 Hi Tom! Er staan al meer van dit soort reviews op mijn kanaal, maar inderdaad nog geen Garmin :-) . Ik hoop ergens in de komende maanden een test te kunnen doen op een aantal apparaten tegelijk, waaronder een Garmin ! Stay tuned ;-)

[@toma8700]

Sub.

[@matthewsanchez3563]

Did you also record audio and video data? Seeing that the Fitbit could be registering various other readings and using those readings to alter the readings for whatever reason it seems to make sense? Such as tossing and turning, body temp, decibel levels could be sensitive in sleep state. Snoring? Or oxygen levels. Just throwing my opinion on it. Great job and diligent effort.

[@TheQuantifiedScientist]

Hi Matthew, thanks for your ideas! I have video data for some of the nights, but not all. This is something I need to look into, but haven't done yet. I tried wearing a "normal" SpO2/oxygen monitor, but that wasn't comfortable. I did wear a FitBit Charge 3 many of the nights, which should have recorded SpO2 levels at the wrist from what I understand. I do have decibel levels as well and environmental temperature. Would indeed be cool to look at all of these! Thanks for the ideas and you compliment, really appreciate it :-)

[@imoutsideoutintheforest8337]

Thank you

[@TheQuantifiedScientist]

You're welcome!

[@Julian_XO]

amazing video

[@TheQuantifiedScientist]

Thanks Julian!

[@icarolorenzato8904]

Charge 3 results?

[@sgtshultz13]

How did you sleep with that thing! Thanks for your suffering for our benefit.

[@JohnDoe-gv9jv]

I have to say out of all the videos I have watched I like yours the best. You explained clearly and in a numbers kind of way. Scientifically and with the whiteboard drawings helped me to understand clearly. Thank you. Also, I agree that we need to spend more time in bed. If I had a beautiful woman in my bed I would be glad to spend more time there. That is what I am missing, oh yea, and a smart watch.

[@cheddargt]

Smartwatch vs Science: How accurate is your sleep tracker? I'd recommend changing the title to this instead. It's more appealing and mantains the information short and sweet. Also, spot-on presentation my friend. Constant eye contact and smiling. Pretty welcoming =)

[@TheQuantifiedScientist]

Thanks for your comment, these things really help! I'll look into changing the title this weekend! You're definitely right! However, I think the FitBit Charge 4 is releasing now, so it might be good to keep the words FitBit in there, so people can actually find the video. Thanks for the compliment, and it seems you're doing better than me on your channel, so good luck to you too! Enjoy the weekend, and stay healthy

[@cheddargt]

​@@TheQuantifiedScientist yeah, I've been researching for a college project and it seems the charge 4 is about to get hot right now =) I think you don't need to actually keep the word "fitbit" in your title for it to pop up in search results. Your thumbnail, description and tags probably have fitbit all over them already. What I did to make sure people found my video was including multiple search alternatives in my description (i. e. fitbit charge 4, fitbit 4, fitbit charge 4 sleep, fitbit 4 sleep tracker), and it did the trick I think. Your video has a lot of potential to be "blessed" by the recommendation algorithm, which is why I think the title I suggested could get you more views: everyone knows what a smartwatch is, but maybe not everyone knows what a FitBit is (I just heard about it for the first time yesterday, it seems to be more popular in the US). Maybe informations like the smartwatch brand, "ONE YEAR TEST" (yes, all caps haha), a miniature of that 5:17 comparison or a miniature EEG graph could fit well in the thumbnail to compliment the title, these things don't necessarily have to be in the title to attract viewers, but are a solid way of creating interest and showing what type of content to expect inside the video. I don't have a lot of experience with running a channel, but I do have a lot of experience with "what piqued my interest" and "what made me click" on a video. I used that experience once to make a decent tutorial on a subject no one had done before but that's pretty much it haha Either way, your content's great. Big respect for your notes in the description too, that's some solid information. I'm not much of a youtuber myself, I just pay attention to things I look forward to in a video and sometimes, when needed, I'll apply that to one of my own :P Stay safe and stay healthy! Have a nice weekend too :)

[@TheQuantifiedScientist]

Thanks! What is your opinion on my latest sleep test video title? kzbin.info/www/bejne/hIq1omeXnbV9aMU Have a great day!

[@TheDonCucaracho]

What's that clock in the background? Kinda looks like something similar to the Max Bill Junghans clock but more 50's

[@pSycHoXiFiCaToR]

What do you do for a living? ... I sleep 😴

[@iamruly7594]

I bought my Fitbit recently because of the sleep tracker because I recently got interested in lucid dreaming. Do you have any content shedding some light into it? (Using the Fitbit to determine REM sleep to lucid dream...)

[@kornisonkiseli3248]

I just bought the Fitbit for the same reason. Did you have success using it to predict REM periods and induce lucid dreaming?

[@patriciadobkin4860]

My FITBIT indicates that I am awake about 1 hour per night. I have Restless leg syndrome - is it picking this up. It was diagnosed in a sleep clinic.

[@lolo2lolo491]

im not sure but is this the fitbit charge 2 ? great review btw !

[@FlorineHeaven]

Hi ! According to the picture, yes it is !

[@johanndaart7326]

I have trouble waking up and keeping my sleep rhythm. I wanted to use "smart alarm" feature. So I bought Hauwei Band 4 Pro, that has this "Harvard Medical School Certified", TruSleep tracking. It detects the length of my sleep correctly, but it turns out, that the "smart alarm" can only work without this TruSleep extended data turned on. Also it doesn't seem to work correctly after two weeks of testing. Considering that you have experience with Fitbit trackers, do you think their "Smart Alarm" feature is useful and working as intended?

[@TheQuantifiedScientist]

Hi Johann! I think if it were accurate it could be useful. However, I think the devices are not accurate enough in most cases to reliably wake you up in the correct stage. I think it will work quite often, but it will also get it wrong sometimes. For me personally, I'd rather sleep 10 minutes more, and be woken up in the "wrong" stage a bit more often, instead of using the smart feature. In the morning we will not have any deep sleep anyway, so it is just a matter of REM vs light sleep. If you feel that this makes a big difference for you, than this feature might be helpful, though it will get it wrong sometimes :-). Just my thoughts, hope it helped in some minor way ;-). Have a great day!

[@melnelly5918]

I have not watched the whole video however I am wondering if sleep accuracy varies between fitbit versions. I am looking at versa 2 and charge 4.

[@TheQuantifiedScientist]

Hi Melanie! The Charge 3 performed similarly to the charge 2, and basically has identical sensors to the charge 4. So i expect the charge series to perform well

[@DeathxStrike18]

Not all but alot of the fit bits are single line ekg monitors, they cant tell you if your having a heart attack but they can keep simple readings. Also your fitbit its checking movement for restlessness unlike the eeg which is just checking brain waves and not body movement why it may say your awake or sleep stages my be off.

[@anooptomar13]

Grt work

[@TheQuantifiedScientist]

Thanks a lot 😊. Have a great day!

[@tommaso.gullone]

Great job! I hope you can help me. I know that they are not perfects but I would like to buy the best sleep tracker, can you help me?

[@TheQuantifiedScientist]

Hi Tommasse, I just did a video on the Dreem 2 Headband, which seems to do pretty well: kzbin.info/www/bejne/aXvSqYuMiqdlg9E. It is not cheap though, so depending on your budget, make sure it is worth it for you :-). Have a great day!

[@salvadorcardona449]

What about Xiaomi's Mi Bands?