ECG Watch: How it Works (Apple, Samsung A fib Watches / EKG)

ECG Watch: How it Works (Apple, Samsung A fib Watches / EKG)

Roger Seheult, MD of MedCram explains how atrial fibrillation can be detected on ECG Smartwatches and the advantages and limitations of this technology. View all Dr. Seheult’s videos at:
https://www.medcram.com/?utm_source=Youtube&utm_medium=Video&utm_campaign=Video+Link+Clicks&utm_term=ECG+Watch%3A+How+it+Works+%28Apple%2C+Samsung+A+fib+Watches+%2F+EKG%29&utm_content=0HxOWCw4hEU
and his EKG course:
https://www.medcram.com/courses/ekg-ecg-interpretation-explained-clearly?utm_source=Youtube&utm_medium=Video&utm_campaign=Video+Link+Clicks&utm_term=ECG+Watch%3A+How+it+Works+%28Apple%2C+Samsung+A+fib+Watches+%2F+EKG%29&utm_content=0HxOWCw4hEU

(This video is MedCram COVID 19 update 140 and was recorded on December 7, 2021)

Roger Seheult, MD is the co-founder and lead professor at https://www.medcram.com/?utm_source=Youtube&utm_medium=Video&utm_campaign=Video+Link+Clicks&utm_term=ECG+Watch%3A+How+it+Works+%28Apple%2C+Samsung+A+fib+Watches+%2F+EKG%29&utm_content=0HxOWCw4hEU

He is Board Certified in Internal Medicine, Pulmonary Disease, Critical Care, and Sleep Medicine and an Associate Professor at the University of California, Riverside School of Medicine.

LINKS / REFERENCES:

ECG smartwatches explained: How they work and the best on the market (Wareable) | https://www.wareable.com/health-and-wellbeing/ecg-heart-rate-monitor-watch-guide-6508

Take an ECG with the ECG app on Apple Watch (Apple) | https://support.apple.com/en-us/HT208955

Through Apple Heart Study, Stanford Medicine researchers show wearable technology can help detect atrial fibrillation (Stanford) | https://med.stanford.edu/news/all-news/2019/11/through-apple-heart-study–stanford-medicine-researchers-show-we.html

ECG / EKG Interpretation Explained Clearly (MedCram) | https://www.medcram.com/courses/ekg-ecg-interpretation-explained-clearly?utm_source=Youtube&utm_medium=Video&utm_campaign=Video+Link+Clicks&utm_term=ECG+Watch%3A+How+it+Works+%28Apple%2C+Samsung+A+fib+Watches+%2F+EKG%29&utm_content=0HxOWCw4hEU

All coronavirus updates are at MedCram.com (including more discussion on ECG watch, a fib watch, watch a fib, atrial fibrillation apple watch, ECG apple watch series 6, Samsung watch ecg accuracy, EKG on Watch, and more).

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Video Produced by Kyle Allred

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MedCram medical videos are for medical education and exam preparation, and NOT intended to replace recommendations from your doctor.

#COVID19 #ECGWatch #Coronavirus

49 Comments

  1. @patriciapalmer4873 on June 16, 2025 at 5:15 pm

    Thank you so much for the video i have afib after the pzizer jabs was ok before also i have a racing heart which i take tablets for do i have to take these tablets for my lifetime?? Much appreciated from the uk patricia

  2. @johnr5545 on June 16, 2025 at 5:19 pm

    Thanks god bless

  3. @ashwinighanekar4782 on June 16, 2025 at 5:21 pm

    Thank you so much for detailed information.

  4. @kokalti on June 16, 2025 at 5:22 pm

    My watch is showing a picture perfect graph. Thank you heart.

  5. @dreamchaser7554 on June 16, 2025 at 5:23 pm

    very detail and good education for us. Tks Dr

  6. @ChuckJ1944 on June 16, 2025 at 5:24 pm

    WOW, that was fabulous! Are both the Samsung and Apple watches equal in their capabilities?

  7. @moecreations1 on June 16, 2025 at 5:25 pm

    Great info.

  8. @JEN-fs2eg on June 16, 2025 at 5:26 pm

    Outstanding.

  9. @robertorion6559 on June 16, 2025 at 5:28 pm

    For a non professional, that was great. I have AFib, Aflutter, SVT, and PVC’s and this explanation of AFib on an ECG was very good. I have been using an Apple Watch for at home ECG’s for years and my cardiologist trusts it. I have sent him ECG reports a few times and it helps to figure out what I should do when I am having issues. Thanks for that explanation and the support for consumer grade cardiac health technologies.

  10. @Medcram on June 16, 2025 at 5:28 pm

    Thanks for watching. The full ECG Explained Clearly video series by Dr. Seheult is available here: https://www.medcram.com/courses/ekg-ecg-interpretation-explained-clearly

  11. @marchervais1269 on June 16, 2025 at 5:29 pm

    Thanks for the explanations. Very interesting.

  12. @craigwesson1788 on June 16, 2025 at 5:30 pm

    I have had and been treated for both Afib and a fast running heart. Have had ablation done 4 times with the final result being unable to reach the issue on the left side. currently on medication which has been for the most part successful. I just wanted to pass on that this video has been the best explained i have ever seen. I wish i had seen this in the beginning to completely understand how it all works. Thank you so much for sharing this !

  13. @ElTamauro on June 16, 2025 at 5:32 pm

    Such a great explanation! Thanks!

  14. @ikat4120 on June 16, 2025 at 5:32 pm

    Can I set up to alert you if your heart rate goes up, for example at night time , when sleeping?!!! I am looking to find something for my mother in law, hear heart beat or blood pressure goes up especially when she is sleeping, sometimes she won’t even sleep it.

  15. @vickyjoshiVjs on June 16, 2025 at 5:33 pm

    Problem is stress and position, while getting results I got stressed and sometime my hands start shaking and thay gives fals AFib. From 10 out of 1 or 2 are afib rest are sinus rhythm. Plus steady position is must too otherwise your qrs might go up n down and will give you afib..

  16. @rajanrangarajan8401 on June 16, 2025 at 5:34 pm

    Does any of these show RBBB or LBBB?

  17. @rogerdodger8415 on June 16, 2025 at 5:34 pm

    If the watch alerts you to AFib, would taking nitroglycerin under the tongue help?

  18. @bhaveshkhadka4624 on June 16, 2025 at 5:35 pm

    Which is the best watch for this use?

  19. @TranquilNapHarbor on June 16, 2025 at 5:37 pm

    Thank you for your great video! it is cool. there is a professional "Apple Watch ECG Pro" analysis app in my channel.

  20. @johnfrensch9879 on June 16, 2025 at 5:38 pm

    Top stuff. Excellent explanation

  21. @tomchupick9450 on June 16, 2025 at 5:38 pm

    Too bad the Apple Watch ECG only works above 50 bpm heart rate. With my <40bpm resting rate no reading is possible. At least I can use the Kardia device and my cell phone which works well for Bradycardia.

  22. @tompurtell4073 on June 16, 2025 at 5:39 pm

    Thank you for this very clear explanation of heart function and ECG EKG. I had an annual physical recently and my P wave and QRS wave look good, it looks like my T wave is inverted and I am just hoping the nurse did not have the sensor correct on my body. The Dr circled the T wave and compared it to my EKG from six years ago and said nothing had changed, but she wants me to take a stress test and see the cardiologist. Any idea on T wave shape and what that might indicate?

  23. @wadsworth2351 on June 16, 2025 at 5:40 pm

    I am thinking of getting a smartwatch that has this feature, for i suffer from atrial fibrillation and i was told this could be a valuable tool.
    Problem is i don’t like smartwatches in general. Is there one that can pass for a true watch without looking so techy?

  24. @Toyos-yk3ri on June 16, 2025 at 5:40 pm

    Excellent video! Wish these existed when i was young I would have gone into medicine.

  25. @drlehman73 on June 16, 2025 at 5:42 pm

    What a great explanation! Thank you!

  26. @IdeasCreationsInventions on June 16, 2025 at 5:42 pm

    Thanks ! I now understand more about the ECG on my Apple Watch… I’m planning to upgrade to the latest watch since mine was able to detect Atrial Fibrillation a few times recently. I’ve seen a cardiologist and was put on a holter monitor and the results were okay but atrial fibrillation probably appears when I’m super fatigued

  27. @dilipupadhyay on June 16, 2025 at 5:44 pm

    Very informative for layman like me, now I know littkbit how to read ECG on watch.

  28. @jayshrestha8601 on June 16, 2025 at 5:44 pm

    What if the watch is worn on right hand? Does that mean its reading lead II?

  29. @francisexperience on June 16, 2025 at 5:46 pm

    Brilliant explanation thank you.

  30. @marieazrak1951 on June 16, 2025 at 5:47 pm

    Is there a way to avoid getting a pacemaker?

  31. @JoseRuiz-se6fo on June 16, 2025 at 5:48 pm

    Best explanation ever !

  32. @Truthseeker1-uq6wc on June 16, 2025 at 5:49 pm

    Fantastic vid o

  33. @powerPF on June 16, 2025 at 5:49 pm

    Thank you for detailed and organized explanation. I have learned so much from this. Despite not being from the medical background, I look forward to checking out more videos from your channel. Please keep up the amazing work.

  34. @olgaszabo5967 on June 16, 2025 at 5:50 pm

    The video is excellent. I can also thank the smart watch that I am better now. Due to the recordings on the smart watch, they noticed the sick sinus disease in me. I currently wear a pacemaker and am much better. Greetings from Hungary! 🥰

  35. @azmilothman2610 on June 16, 2025 at 5:51 pm

    Thanks for your explanation..very easy to understand…even far more information of the smart watch ecg as it suppose

  36. @siuyinng8374 on June 16, 2025 at 5:54 pm

    Thank you very much Doctor for excellent explanation 🪻

  37. @mahadevansivaramakrishnan5461 on June 16, 2025 at 5:54 pm

    I loved this video doctor. the explanations were detailed and thorough. I gave me some thought on how to manage my own heart abberations…if and when they may appear …and if i have a smart watch that detects them I could seek medical advice immediately when any anomaly is reported.
    I know the smart watch feature is a crude hit-or-miss tool at best, but at least I have that available….
    Thank you doctor.

  38. @tomprovan50 on June 16, 2025 at 5:54 pm

    how do you use this to see sympathetic dominance vs parasympathetic dominance ? tkx

  39. @ronbunker5778 on June 16, 2025 at 5:55 pm

    I now have a better understanding of my Afib.

  40. @pain1474 on June 16, 2025 at 5:57 pm

    Thank you so much for this video. I have AFib and I have several episodes every day. I’ve had it for 10 years and suffered a stroke as well as limited ability to perform daily activities. It happens suddenly and often times for no apparent reason. I learned more about the hearts natural and AFib rhythms from this short video than I have from my own doctors or online research in the 10 years I have suffered with AFib/ arrhythmias and tachycardia. Now I feel I can understand my ecg/akg readings when I look at them. You are an excellent teacher. You deserve an award. Thank u again ❤

  41. @ssshady08 on June 16, 2025 at 6:01 pm

    So what would happen if you touched your big toe on either foot, would you get a different lead? You know, instead of touching your hand, touch the foot?

  42. @knightofvengeance9888 on June 16, 2025 at 6:02 pm

    Beautiful explanation

  43. @ssuubbaasshh123 on June 16, 2025 at 6:03 pm

    How do you compare smart watch with Omron Complete (BP + ECG)

  44. @lindareaves7779 on June 16, 2025 at 6:03 pm

    Great explanation!

  45. @giao2380 on June 16, 2025 at 6:03 pm

    Would this be good to identify anxiety while sleeping, PTSD and night terrors?

  46. @andrewfaramphotography on June 16, 2025 at 6:04 pm

    I’m considering buying one because I saw a cardiologist for the first time, just to do some investigation into some stuff and was surprised when he told me that the new Apple Watch’s are pretty accurate. Makes me want one just as a precautionary thing

  47. @blomegoog on June 16, 2025 at 6:06 pm

    Tumeric is a natural anticoagulant. it looks like a ginger root but yellow. Indian foods often use it as spice.

  48. @errolphillips9747 on June 16, 2025 at 6:08 pm

    Where can I get this watch

  49. @marieazrak1951 on June 16, 2025 at 6:10 pm

    Do you get the certificate for it

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