Discussion in 'Apple Watch' started by HappyDude20, Apr 29, 2015.

  1. HappyDude20 macrumors 68030


    Jul 13, 2008
    Los Angeles, Ca
    My heart rate much like your is sporadic throughout the day. Admittedly is love to wear the apple watch over night to see how my heart rate changes at different times, perhaps even using it alongside a REM sleep app.

    How accurate is the heart rate monitor? I'm not hating on the watch quite yet, I'm debating ordering one now after tryin it on last night but so far seems like an elegant toy as oppose to a serious medical device. <Obviously it's not the latter but marketed more that way.
  2. jjlannoo Suspended

    Oct 8, 2011
    Mine is spot on with my treadmills chest strap
  3. DavoteK macrumors 6502

    Jan 5, 2012
    Marketed like a serious medical device? Must've missed that one.

    Sorry doc, not for you if thats what you're after.
  4. Downs2011 macrumors regular

    Mar 7, 2013
    Maryland, USA
  5. tgwaste macrumors 6502a


    Sep 18, 2013

    same here.
  6. Cyberstven macrumors regular

    Jul 29, 2012
    I am extremely disappointed with the heart rate monitor thus far.

    I am a fitness sensor fanatic, and the Apple Watch has been far less accurate/informative than the cheaper alternatives. Ive found it terrible for tracking peaks during weight lifting/intervals, and its taken the HR monitor 5-10 minutes to show an accurate number during outdoor runs. I've played around with tightness and location with minimal results.

    My biggest complaint is that I would rather the watch say acquiring than give me a BS metric like 175bpm when I know I should be around 135-140.

    Luckily, the software on this device is far more advanced, so hopefully they make tweaks based off of the extensive data they are getting.

    As of now, amazing smart watch, sub-par fitness tracker.
  7. Alith macrumors 6502

    Feb 9, 2008
    London, UK.
    Unless you're using the watch's activity app for you outdoors runs it will only check your HR every 10 minutes, which is does constantly throughout the day anyway. In the activity app it constantly measures heart rate.
  8. Che Castro macrumors 603

    May 21, 2009
  9. John6Plus macrumors 6502


    Sep 19, 2014
    Holland, MI
    Have you tried the FitBit Charge HR? That's my current (and first) tracker. I'm curious how they compare as heart rate monitors. It won't be a big deal to wear my fitbit on my other arm at times, if I want to, but naturally I'd like to avoid it. The Charge is nice for sleep tracking, which I won't be using the Watch for, because that'll be its nap time.

    The Charge also calculates a resting heart rate which has tracked beautifully with how much I exercise (as it should) and I enjoy using it as a bit of a metric. Curious how the watch does at that as well.
  10. DavidTheExpert macrumors regular

    Apr 20, 2012
    Here's what you need to know: The heart beat monitor reads your heartbeat over the course of about 10 seconds and then gives you the readout. It's not constantly updating or real time. You can manually tell it to read your heart rate, at which point it will tell you about 10 seconds later what your heartbeat has been over those 10 seconds. Or with the workout app, it will measure throughout your workout but only in increments of about 1 or 2 minutes (not sure yet) So it's not like you can constantly monitor your heart beats at all times, but it's still very accurate and useful.

    The sensor itself works very well. If you use the messaging thing to send your heartbeat to a friend you can feel it match up directly with your heart in your body, so it is definitely reading accurately. I think with a few software updates, it will become way more useful than it currently is without any new hardware.
  11. ItsGavinC macrumors 6502

    Jun 29, 2007
    With the activity app, it monitors all of the time. It takes 10 seconds to aquire the rate, and gives you 6 readings every minute. So a 20 minute workout would yield 120 unique heart rate readings. If the activity app isn't used, then the same 20 minute workout would yield 2 readings (one every 10 minutes).

    You can view (and verify) this in the Health app on your phone.
  12. bushido Suspended


    Mar 26, 2008
    I hope not too well otherwise I may have a heart problem at hand ^^ it's 84ish when I do nothing watching TV and goes up to 124 just walking to the metro
  13. gmanist1000 macrumors 68030


    Sep 22, 2009
    Mine seems to be pretty darn accurate. I just wish I could see an average heartbeat for the entire day, rather than it only telling me my heart rate 5-10 minutes ago.
  14. Armen macrumors 604


    Apr 30, 2013
    It's accurate if you wear it a bit higher on your wrist.
  15. MultiMediaWill macrumors 68000

    Aug 1, 2010
    I have a dedicated heart rate monitor to compare with. The apple watch is okay with accuracy, but it is very slow to get your heart rate. I will be buying a bluetooth chest strap for my apple watch.
  16. foxkoneko macrumors 6502

    Sep 5, 2011
    it's pretty accurate. Between the other fitness band, the elliptical macchine at gym, it was within 5 BPM of those
  17. Armen macrumors 604


    Apr 30, 2013
    Or when your CAPS lock key sticks.
  18. Kb522 macrumors member

    Mar 15, 2011
    What would be the benefit of having an average for the whole day? Your HR changes so much depending on the activity. It is better to have singular readings for resting, walking, exercise, etc.
  19. Kb522 macrumors member

    Mar 15, 2011
    I regularly use a Garmin Forerunner 620 with HRM Chest Strap and when I ran for the first time with my watch, the HR was pretty much spot on, or within 5 bpm of my Garmin data. You can see from the pics below the comparison of my average HR during this run.

    What I had trouble with more was the difference in pace.  Watch was consistently off on that. However, I've read this calibrates with use and time. Hope so!

    Attached Files:

  20. Blakjack macrumors 68000


    Jun 23, 2009
    Based on what I have heard, the HR monitor isn't ideal for weight lifting or other scenarios when you are constricting the your body's blood flow. When you lifting weights, your muscles tighten impeding your body's blood flow.

    That's why it takes a second for the HR monitor to give you a reading. Once you're done with a set, your muscles aren't as tight and the blood flow becomes fluent again. The monitor is able to then pick up a reading.

    For things like jogging, jump rope, rowing, and anything else that doesn't constrict the blood flow, the HR monitor has been spot on.

    Just what I've heard. I have no proof to support this claim. I don't even have my watch yet.
  21. tgwaste macrumors 6502a


    Sep 18, 2013

    sorry, not true. have you use the manual HR function yet?

    its a 45 second snapshot.

    first 15 seconds - gets the first reading
    next 30 seconds - adjusts the reading accordingly.
    after 45 seconds - screen shuts off

    i mean all you have to do it use it and count.
  22. bushido Suspended


    Mar 26, 2008
    you can see them all in the health app
  23. tivoboy macrumors 68040

    May 15, 2005

    I did some tests today on the stationary bike. using the handlebars on the bike (polar HR monitor) it was exactly what the apple watch said,

    Also, I used my garmin chest strap, and it was showing exactly what the apple watch said.

    I think what people MAY be witnessing is that in the activity app, the sampling rate is not very frequent (or at least displayed frequently, it is indeed recording either ever 10 minutes or about six times a minute during an activity) but the display rate is not really real time.

    try going over to the heart rate GLANCE and pull that up. That one gives me much more real time results and changes in real time if you try and leave it up.
  24. Lobwedgephil macrumors 601


    Apr 7, 2012
    Have found it to be extremely accurate. Much better the previous Fitbit.
  25. Devinaire macrumors newbie

    Sep 24, 2014
    It's pretty accurate especially when it comes to my dog!!!

    Attached Files:

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