AW3 to AW4 upgrade question

Discussion in 'Apple Watch' started by 370zulu, Feb 6, 2019.

  1. 370zulu macrumors regular

    370zulu

    Joined:
    Nov 4, 2014
    Location:
    Cincinnati, Ohio
    #1
    I have a history of A-fib and currently wear a series 3 with LTE and use the KardiaBand ECG sensor band that I purchased for it. I am considering upgrading to the series 4 LTE and just using the built in sensor in the series 4 instead of the KardiaBand sensor. Would anyone who has used both please comment on the reliability and accuracy of the AW4 ECG sensor where this is concerned? I am really looking to be able to have a completely water resistant watch as the KardiaBand is not water resistant. Accuracy and reliability are obviously key for me. Thank you.
     
  2. tgara macrumors 6502a

    tgara

    Joined:
    Jul 17, 2012
    Location:
    Connecticut, USA
    #2
    I cannot comment directly on the KardiaBand item, but I can tell you that when I did an ECG on my Series 4, it put up all sorts of disclaimers about the readings, including disclaimers about accuracy. Here's Apple's support article about this feature:

    https://support.apple.com/en-us/HT208955

    Another article states the following:

    https://support.apple.com/en-us/HT208931

    For me and others, the ECG output is interesting but rudimentary, and not intended to be a comprehensive type of diagnostic. Depending on your situation and what you want to achieve, you may be better off with the Kardia.
     
  3. 370zulu thread starter macrumors regular

    370zulu

    Joined:
    Nov 4, 2014
    Location:
    Cincinnati, Ohio
    #3
    Thank you for the information and perspective.
     

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