Heart rate sensor over tattoo?

Discussion in 'Apple Watch' started by venividivigor, Apr 3, 2015.

  1. venividivigor macrumors 6502

    Joined:
    Jun 11, 2013
    #1
    Well I just got my tattoo done and j just realized it might be in the way of the heart rate sensor. Do you think it would have an effect on the way it tracks my pulse?
     
  2. dannyyankou macrumors 603

    dannyyankou

    Joined:
    Mar 2, 2012
  3. JayLenochiniMac macrumors G5

    Joined:
    Nov 7, 2007
    Location:
    New Sanfrakota
    #3
    That's like asking if the Apple Watch won't work on black people because the pigment gets in the way. No.
     
  4. priscilla55 macrumors regular

    priscilla55

    Joined:
    Oct 2, 2013
    Location:
    Falkirk, Scotland
    #4
    It should still be accurate, but it may cause your battery to drain faster. The heart rate sensor apparently uses brighter light when it encounters darker skin, so if your tattoo is very dark under the sensor, it will be using more power.
     
  5. tgi macrumors 65816

    tgi

    Joined:
    Aug 29, 2012
  6. bunnicula macrumors 68040

    bunnicula

    Joined:
    Jul 23, 2008
    #6
    I'm baffled by this. Are you asking because you're concerned that the iron oxide in tattoo ink may interfere with the sensors?
     
  7. bumpylumpy macrumors member

    Joined:
    Mar 13, 2015
    #7
    It's a serious concern with existing optical heart rate sensors. For some people, the pigment of their skin and the thickness of the epidermis will make readings more difficult.

    It is unlikely to affect the accuracy; if it gets a read at all, the timing will be correct. The bigger problem will be whether it consistently gets a read at all.
     
  8. bbeagle macrumors 68040

    bbeagle

    Joined:
    Oct 19, 2010
    Location:
    Buffalo, NY
    #8
    So, OMG! Black, Brazilian people, the watch drains faster! It's RacistGate! :)
     
  9. scwinsett macrumors 6502a

    scwinsett

    Joined:
    Apr 21, 2010
    Location:
    Nashville, TN
    #9
    Why would that affect it? Really silly question. No buddy you will be fine
     
  10. Multiverse223 macrumors regular

    Joined:
    Mar 16, 2015
    #10
    I think I read someone said that's why the lights are green. Green work better for all different types of skin pigment. Although I don't have evidence to back this up.
     
  11. VFC macrumors 6502a

    Joined:
    Feb 6, 2012
    Location:
    SE PA.
    #11
    Having large veins under the watch also helps with accuracy. I get excellent HR accuracy with my FitBit. If I had a tattoo or darker skin, I don't think the sensor would have any trouble.
     

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  12. Julien macrumors G3

    Julien

    Joined:
    Jun 30, 2007
    Location:
    Atlanta
    #12
    Not to get too technical but HR is measured through the arteries ;) and they are a little deeper. Also you have larger veins from cardio/weight training and they are even more exposed because of lower body fat.
     
  13. venividivigor thread starter macrumors 6502

    Joined:
    Jun 11, 2013
    #13
    I stand corrected.

    **** you guys

    http://forums.macrumors.com/showthread.php?t=1875819

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    You're all a bunch of smart asses lol
     

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