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  1. Thread Author  Thread Author    #1  
    grabaka's Avatar

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    Default heart rate monitor horribly inaccurate?

    anyone else have a gear 2 with a horribly inaccurate HRM when exercising? sometimes it will randomly show 50 bpm at high intensity and then 170 bpm while cooling down. Not sure if I have a defective unit or the HRM on these things is just a novelty and not actually useful like a standard HRM you wear on your chest. Also, anyone know if they plan on a mode for exercises that dont involve moving around like resistance training/aerobics?
  2. #2  

    Default Re: heart rate monitor horribly inaccurate?

    It has to be placed on your arm at a specific spot. I get accurate readings by holding the phone by the band on the balls of my wrist. lol

    it seems like the more I use it the better it works.
    LowIQ likes this.
  3. #3  

    Default Re: heart rate monitor horribly inaccurate?

    Quote Originally Posted by grabaka View Post
    anyone else have a gear 2 with a horribly inaccurate HRM when exercising? sometimes it will randomly show 50 bpm at high intensity and then 170 bpm while cooling down. Not sure if I have a defective unit or the HRM on these things is just a novelty and not actually useful like a standard HRM you wear on your chest. Also, anyone know if they plan on a mode for exercises that dont involve moving around like resistance training/aerobics?
    Try wearing the watch upside down (so the heart rate monitor reads the bottom of your wrist where the veins are instead of the top) when you work out? Just a thought. Wonder if it would make a difference.

    Sent from my SM-P600 using AC Forums mobile app
  4. #4  
    RU55's Avatar

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    Default Re: heart rate monitor horribly inaccurate?

    Hey
    I'm experiencing the same problem. I went hiking today and at times it peaked at 170 bpm whilst standing calmly taking in the views! Disappointed as the HRM was one of the main motivations for purchasing the watch. Expected better tbh. I did find that it worked slightly better when fastened tighter to my wrist.
    I'll try Jackson's suggestion n wear it upside down to see if that helps.
  5. #5  
    Trent9810's Avatar

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    Default Re: heart rate monitor horribly inaccurate?

    Mine is pretty good. I think it depends on how you wear it.

    Posted via Android Central App
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  6. #6  

    Default Re: heart rate monitor horribly inaccurate?

    Mine seems accurate and consistent

    Sent from my SM-T320 using Tapatalk
  7. #7  

    Default Re: heart rate monitor horribly inaccurate?

    Switching between the gear and phone, they seem about the same and accurate. I have not used either yet in a heavy workout/exercise environment though.
  8. #8  

    Default Re: heart rate monitor horribly inaccurate?

    I used it while doing some heavy exercises and compared it with the hrm of the fitness machine. They measured almost the same all the time, just a minor difference (less than five).
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  9. #9  

    Default Re: heart rate monitor horribly inaccurate?

    Quote Originally Posted by grabaka View Post
    anyone else have a gear 2 with a horribly inaccurate HRM when exercising? sometimes it will randomly show 50 bpm at high intensity and then 170 bpm while cooling down. Not sure if I have a defective unit or the HRM on these things is just a novelty and not actually useful like a standard HRM you wear on your chest. Also, anyone know if they plan on a mode for exercises that dont involve moving around like resistance training/aerobics?
    I'm a medic and it's pretty close for the most part. And the S5 is even better in my experience.
  10. #10  

    Default Re: heart rate monitor horribly inaccurate?

    I experienced the same exact thing yesterday at the gym. However, as my workout continued the variability seem to calm down. I don't know this, but I wonder if it is self-correcting over time. Even if that is the case' that would still be a problem.

    Posted via Android Central App
  11. #11  

    Default Re: heart rate monitor horribly inaccurate?

    I am wondering (no proof) if this has to do with how tight you wear the band? That is, would the HRM be very accurate if the watch never loses contact with your skin (tighter band), but be less accurate if the band is a bit loose and the HRM is able to occasionally fall away from your skin? Just a thought.

    Posted via Android Central App
  12. #12  
    ihbsbA's Avatar

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    Default Re: heart rate monitor horribly inaccurate?

    Quote Originally Posted by JacksonEdwardHarrison View Post
    I am wondering (no proof) if this has to do with how tight you wear the band? That is, would the HRM be very accurate if the watch never loses contact with your skin (tighter band), but be less accurate if the band is a bit loose and the HRM is able to occasionally fall away from your skin? Just a thought.

    Posted via Android Central App
    This seems to be correct -- from my experience.
  13. #13  

    Default Re: heart rate monitor horribly inaccurate?

    I should have listened to that 2-star review on Amazon stating how useless the HR monitor is. It's only good for getting the pulse once while standing perfectly still and that's it. Forget about getting anything within +/- 50 BPM accuracy if using while exercising. I really hope Samsung plans to fix this... the HRM is clearly broken.
    1812dave likes this.
  14. #14  

    Default Re: heart rate monitor horribly inaccurate?

    This is not my experience as I already stated earlier in this threat. I did heavy exercises. The fitness app makes the hrm work continously. Measures were ok, with low rates and high rates (up to 180). Compared to the hrm of the fitness machine in the fitness club. And yes, the fitness app is intended for outdoor exercises, but you can use it indoor for continuous hrm if you want.

    Posted via Android Central App
    ihbsbA likes this.
  15. #15  

    Default Re: heart rate monitor horribly inaccurate?

    For those people that state the HRM works fine, have you ever owned a Polar, Zephyr or Garmin HRM chest strap before? Or the Mio Alpha wrist-worn HRM? I have owned 4 HRM over the last 16 years and have used them extensively; I can pretty much accurately gauge my HR within +/- 10 BPM just by how much I'm physically exerting at the moment. I would surmise the Gear 2's HRM data you are reading is highly inaccurate and you just aren't aware of it. No offense to those that haven't owned and used other HRM monitors but from the feedback I'm reading here and on other forums, those that say it works fine never used a reliable chest strap or Mio Alpha HRM before. They just have nothing reliable to compare it to so they think it works fine. I can tell you with absolute certainty that the Gear 2's HRM is highly unreliable to the point where Samsung should cease all health tracking benefit advertising of their product. It's that bad.
  16. #16  
    ihbsbA's Avatar

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    Default Re: heart rate monitor horribly inaccurate?

    Quote Originally Posted by pj737 View Post
    For those people that state the HRM works fine, have you ever owned a Polar, Zephyr or Garmin HRM chest strap before? Or the Mio Alpha wrist-worn HRM? I have owned 4 HRM over the last 16 years and have used them extensively; I can pretty much accurately gauge my HR within +/- 10 BPM just by how much I'm physically exerting at the moment. I would surmise the Gear 2's HRM data you are reading is highly inaccurate and you just aren't aware of it. No offense to those that haven't owned and used other HRM monitors but from the feedback I'm reading here and on other forums, those that say it works fine never used a reliable chest strap or Mio Alpha HRM before. They just have nothing reliable to compare it to so they think it works fine. I can tell you with absolute certainty that the Gear 2's HRM is highly unreliable to the point where Samsung should cease all health tracking benefit advertising of their product. It's that bad.

    I own and use a Polar on a daily basis. My HRM seems to be very close during the three events I've used it, but I haven't tried it at the gym yet.. Are you using it on "Exercise" mode? it doesn't matter which one you choose, it will go into a constant mode where the HRM is on the entire time. That's when it seems to even out and be more accurate. Also, turn the watch to where the monitor is on the underside of your wrist..have you tried that?
  17. #17  

    Default Re: heart rate monitor horribly inaccurate?

    I have been wearing the watch upside down for the past two exercise sessions and have been very satisfied. BPM measurement has been consistent and steady. An added benefit, you dont have to rotate your wrist as much to get your reading.

    There's a reason they take your pulse on the underside for your wrist.
    ihbsbA likes this.
  18. Thread Author  Thread Author    #18  
    grabaka's Avatar

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    Default Re: heart rate monitor horribly inaccurate?

    Yeah, I am coming from owning a polar hr monitor which seems to be wayyyy more accurately on a second by second basis.

    I think the gear is "ok" for (1) overall heart rate monitoring - ie after your workout is down, it seems to average close to what your actual heart rate/calories were and (2) spot checking heart rate using the heart rate function. BUT on a second by second basis, the gear appears to be horribly bad.
  19. #19  
    ihbsbA's Avatar

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    Default Re: heart rate monitor horribly inaccurate?

    Just curiously, I am a numbers geek, too, so I get the "second by second" basis "want to know" thing, but the truth is - Heart rate monitoring really goes by an average. Can you tell me why it matters that your heart rate is EXACT every single second? It really doesn't, if we think about it. It's nice, for those of us used to a Polar, to see EXACT numbers..but at the end, it matters what you maintained during the workout, not what it was at 37 minutes and 12 seconds in to it. Maybe we need to rethink how important the exact accuracy is and stop being so OCD. Myself included.
  20. Thread Author  Thread Author    #20  
    grabaka's Avatar

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    Default Re: heart rate monitor horribly inaccurate?

    it actually matters a lot - maybe not for the casual exerciser, but for those that are optimizing their fitness, there are a lot of reasons you want to know your hr on a second by second basis if you use hr as a metric to determine your output, for example in high intensity interval training or if you are working within a particular heart rate threshold (e.g. building your base, building vo2 max) etc.
  21. #21  

    Default Re: heart rate monitor horribly inaccurate?

    Quote Originally Posted by ihbsbA View Post
    Just curiously, I am a numbers geek, too, so I get the "second by second" basis "want to know" thing, but the truth is - Heart rate monitoring really goes by an average. Can you tell me why it matters that your heart rate is EXACT every single second? It really doesn't, if we think about it. It's nice, for those of us used to a Polar, to see EXACT numbers..but at the end, it matters what you maintained during the workout, not what it was at 37 minutes and 12 seconds in to it. Maybe we need to rethink how important the exact accuracy is and stop being so OCD. Myself included.
    You're right... it doesn't matter if it's correct every second. But that is not the case whatsoever. The Gear 2 will go more than just a second or two being inaccurate - try 5, 10, 20 minutes or more straight. This completely invalidates peoples' exercise sessions (caloric expenditure feedback) when they may be pushing "hard" for only 10-20 minutes out of their entire daily workout. I'm going to illustrate the gross inaccuracies of the Gear 2's HRM for you with the following images. I am wearing both the Mio Alpha and the Gear 2 very tightly against my wrist (see my skin creasing up along side of the watches on the first image) and wearing them so the sensors are facing the more sensitive underside of my wrist as some suggested I do. There were no wild movements - all exercise is done in a controlled environment and my hands/wrists were being very still holding the treadmill's safety bars and HRM sensors. Note that the Mio Alpha was compared to the Zephyr and Polar chest HRMs and they would always be within 2-3 bpm of each other. Consistently. The Mio is extremely reliable. I also tried swapping the two on another test so that Mio was closer to my hand and the Gear 2 was further from my hand. Both tests yielded the same gross inaccuracies.

    The first image shows me driving to the gym (taken immediately after a quick walk to my car). Note I'm reading 72 bpm on my Mio Alpha which is consistent with my Polar and Zephyr chest strap HRM but we have a whopping 138 bpm on the Gear 2. Note that I am sitting in my car driving (slightly elevated at 72 bpm because I just briskly walked to my car) - not running at a relatively fast pace as a 138 bpm rate would suggest. Note the elapsed time as I started the exercise app (hiking) earlier in the day.

    heart rate monitor horribly inaccurate?-2014-04-21-09.59.34.jpg

    The second image shows me on a treadmill walking at a very fast pace on a 14% incline. The Mio has me at 121 while the Gear 2 thinks I'm just sitting around at 73 bpm! You can see the treadmill rubber band track below the watches. Note the elapsed time at 2:17:48.

    heart rate monitor horribly inaccurate?-2014-04-21-10.42.15.jpg


    Here on the third image I am running on the treadmill at a quick pace on a 14% incline (just stopped quickly to take the pic). You can see the perspiration forming on my arm. Note the elapsed time of 2:22:47. The Mio has me at a fair 139 bpm (the treadmill HRM showed me at 138 bpm; sorry tried to include in pic to throw it into the comparison but once I took my hands off the sensors it disappeared). The Gear 2? Yup, nailed it. WAAAAAY OFF at 84 bpm.

    heart rate monitor horribly inaccurate?-2014-04-21-10.47.14.jpg

    Do you see how grossly inaccurate this device is? I hope this shows some of you that the device is not just utterly useless - it's an insult to those that bother using this feature at all.

    Finally, I wanted to add that the caloric expenditure calculation on the Gear 2 is also horribly inaccurate (actually more inaccurate than the HRM believe it or not) - this is completely exclusive of the broken HRM. Despite the huge discrepancies evident in my images above, the Gear 2 did report the data while I was on a stairmaster for about 30 minutes and it was within 25-30 bpm accuracy for most of the duration. Check out the last image where it shows my total caloric expenditure over the 50-minute period at the gym which included mostly medium to high energy output. What did I burn? 76 CALORIES!! I burn that much just walking around the mall for 30 minutes. The gym Stairmaster's computer depicted a caloric burn of 270 calories alone (I ascended 146 stories). The Gear 2 was monitoring my heart rate the ENTIRE time. So not only is the HRM useless, the algorithms used to extrapolate the HRM data is grossly inaccurate too. Everything about this device from a health-tracking perspective is a major failure.
    Last edited by pj737; 04-21-2014 at 05:29 PM.
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  22. #22  
    ihbsbA's Avatar

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    Default Re: heart rate monitor horribly inaccurate?

    lol...in this case, I'd actually suggest that you return it and try another unit. Mine is not this far off...
  23. #23  

    Default Re: heart rate monitor horribly inaccurate?

    Quote Originally Posted by ihbsbA View Post
    lol...in this case, I'd actually suggest that you return it and try another unit. Mine is not this far off...
    I thought about that but based on other forum posts many others are receiving the same grossly inaccurate HR data from their Gear 2 and Fit. The chances of that many "defective" units out there is slim to none. The engineering/design/implementation just doesn't work. Simply put, Samsung rushed this to the market without testing it. The health/fitness-tracking industry is huge and Samsung just fell flat on its face trying to get a piece of it. I'm still holding out hope that Samsung can fix this with a firmware/software update.
  24. #24  

    Default Re: heart rate monitor horribly inaccurate?

    Quote Originally Posted by pj737 View Post
    I thought about that but based on other forum posts many others are receiving the same grossly inaccurate HR data from their Gear 2 and Fit. The chances of that many "defective" units out there is slim to none. The engineering/design/implementation just doesn't work. Simply put, Samsung rushed this to the market without testing it. The health/fitness-tracking industry is huge and Samsung just fell flat on its face trying to get a piece of it. I'm still holding out hope that Samsung can fix this with a firmware/software update.
    It's not so much what you say dude, it's how you say it. Frustrated posts are one thing, but constant fury-filled rants are another. I suppose the following will be considered a personal comment and I will probably get in trouble for saying it, but what the hell. I bet your single and live alone. And if you're not, I bet you are a royal pain in the *** to live with. Not sure how anything or anyone could live up to your expectations. Bless your heart man, and may God bless your inner circle.
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  25. #25  
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    Default Re: heart rate monitor horribly inaccurate?

    Have used the Neo heart rate function for the past four days, three times to the gym and with biking or walking around town.

    While moving -but with a steady arm the results I get are almost always accurate. Conversely, testing the pulse while my arms are in motion -say on an elliptical, or perhaps running, doesn't work well. By pausing a second and capturing the pulse during a heavy session I can get pulse rates that agree with the machines I've used at the gym.
    -- Also at home the pulse counts were dead on with a blood-pressure/heart beat machine we have here.

    It's just not meant to be the monitor-while-in-the-stress-exercise mode. Those sports bands would be better for that.

    Considering all the other good things the watch does, this limitation on how to use pulse monitor (and the stupid way Samsung has botched the S Health transition for all users of prior phones) is (are) endurable.

    I still like the watch overall!
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