Series 3 altimeter and heart sensor

Discussion in 'Apple Watch' started by satchmo, Sep 13, 2017.

  1. satchmo macrumors 68020

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    #1
    I realize it'll be a few weeks/months before we see full blown reviews of this watch. Looking forward especially from Youtube fitness bloggers. That said, a couple of general questions.

    Altimeter. I understand this helps with activities such as stair climbing or mountain climbing. I assume this would this help with accuracy for running elevations as well?

    Improved Heart rate monitor. Is this a physical change in the Series 3, or simply a Watch OS4 software upgrade that would apply to older Series 2 watches too?
     
  2. profets macrumors 601

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    Mar 18, 2009
    #2
    Exactly, should give elevation info for running, cycling and any other activities that it would relate to.

    I believe it's mainly a significant software update within OS4.
     
  3. Mabus51 macrumors 65816

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    #3
    Pretty much all a software update. Nothing changed from the series 2, other than adding LTE and shorter battery life.
     
  4. profets macrumors 601

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    Mar 18, 2009
    #4
    As well as an improved processor and significantly faster wifi with the W2.
     
  5. satchmo thread starter macrumors 68020

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    #5
    I suppose it might be worth waiting to see some benchmark tests in the coming weeks.

    If a Series 2 can be had for much less, I'd probably go for that over a Series 3 (non-LTE).
     
  6. profets macrumors 601

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    #6
    ^Agreed - I'm not implying that one should upgrade from the Series 2 to 3, just mentioning what the differences are.

    Unless you really want cellular, I think going with the Series 2 (if its still for sale) or staying with it (if you already have one) is best.
     
  7. Mabus51 macrumors 65816

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    Aug 16, 2007
    #7
    Skipping altogether. I will only purchase ones with Sapphire crystal and they all come with an ugly red dot on the side. Aside from that, my phone bugs me enough with work. I don’t need my wrist constantly vibrating to stand and breathe on top of everything else. Huge reason my 1st gen sits neglected.

    When it has a better heart rate sensor that can actually see arithmeas over just beats per minute, I’ll re-examine.
     
  8. betabeta macrumors 6502a

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    #8
    I was disappointed the sensors were not upgraded, the heart rate sensors are not the best, it’s good but I still get mistakes.
     
  9. Treebark macrumors 6502

    Treebark

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    #9
    Let's not forget Siri can speak now too. Combined with the altimeter, probably better battery life for gps only version, faster CPU could handle next year's update better speed wise, faster wifi and Bluetooth.....

    But perhaps you are just trolling.
    --- Post Merged, Sep 13, 2017 ---
    Considering studies like http://appleinsider.com/articles/17...h-heart-rate-monitor-mediocre-calorie-counter show the Apple Watch is already one of the most accurate hr monitor in a fitness device I'm not sure it would have been cost effective or worth it to put in better sensors. 2% margin of error seems just fine, especially since that study thought 5% would have been.
     
  10. chiefs1968 macrumors regular

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    Feb 27, 2016
    #10
    I don't think the software upgrade will include the Barometric altimeter and the siri speaks....if that was the case i would see "zero" series 2 owners jumping to purchase the series 3. But I could be wrong and......
     
  11. deeddawg macrumors 604

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    #11
    For clarification, I believe that study just looked at optical HR monitors. An actual chest-strap which reads the electrical signals and transmits to the watch via Bluetooth or ANT+ will remain the most accurate non-medical method. Optical is of course "good enough" for most folks, I just wanted to clarify the above for folks.

    And yes, apparently a bluetooth chest strap HRM will work with the Apple Watch. https://www.imore.com/best-external-heart-rate-monitors-iphone-and-apple-watch
     
  12. Benz63amg macrumors 68030

    Benz63amg

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    #12
    Do we know for certain that the Physical hardware HR sensor in the series 3 is the exact same HR sensor that is present in the series 2?
     
  13. eastamherstbias macrumors 6502

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    #13
    Since using my AW2 +NRC app + No phone = 0 elevation gained. I can't wait for AW3. It was super annoying it was missing from AW2.
     
  14. Benz63amg macrumors 68030

    Benz63amg

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    #14
    its really silly that the Series 2 Lacks the extremely important elevation measuring component
     
  15. JefeBall macrumors newbie

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    Sep 13, 2017
    #15
    What I'm wondering is will the LTE be good to have for future OS features. I don't have much use for LTE right now, but if the next OS update had added health/fitness tracking benefits that required LTE, I'd invest in LTE now.
     
  16. eastamherstbias macrumors 6502

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    #16
    I was going to get the AW3 with LTE and not turn it on LTE just yet.
     
  17. edhchoe macrumors 6502a

    edhchoe

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    #17
    if you have an heart attack while running without your phone , 911 call will be automatically initiated... in the future...according to me.
     
  18. OVERTASK macrumors 6502

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    #18
    It's probably in the "pipeline"
     
  19. profets macrumors 601

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    #19
    Well, the other advantage is significantly improved wifi speed (not sure the details on it)with the W2. I’m feeling it may help the watch as an independent device even over wifi and less reliance on Bluetooth.
     
  20. Benz63amg, Sep 14, 2017
    Last edited: Sep 14, 2017

    Benz63amg macrumors 68030

    Benz63amg

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    #20
    Wifi speed? not once have i thought the wifi on the apple watch series 2 was slow..
     
  21. satchmo thread starter macrumors 68020

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    #21
    Some who were at the event, felt the AW3 was snappier when swiping.
    We'll have to wait and see if there are perceptible speed difference. It will also depend on if you're coming from a Series 0,1,2 or perhaps a new user entirely.
     
  22. ftaok macrumors 603

    ftaok

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    #22
    This is really Nike's fault. Yeah, the S2 doesn't have the barometer, so there's no way to do real-time elevation changes, but there's no reason that elevation data can't be added after the run.

    Other services will overlay the elevation data based on the GPS map after uploading to the server. Why Nike+ Run Club doesn't do this .... who can say?
     
  23. profets macrumors 601

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    Mar 18, 2009
    #23
    I know - I'm just trying to think about where they are going with it. Was the Watch previously limited to 2.4ghz? I can't recall exactly.

    Anyway, I thought a big part of the story around the cellular version (or the Series 3 in general) could have been the watch running much more independently by using wifi for faster network access than relying on the phone's bluetooth. I know it's already able to do that, even with the phone out of range or even on a different network, but I imagine with time they can improve on this.

    I kind of missed the bit about the speed improvement for the S3 - 70% sounds significant actually.
     
  24. area52 macrumors member

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    Nov 4, 2014
    #24
    According to this (step 14)....

    https://www.ifixit.com/Teardown/Apple+Watch+Series+2+Teardown/67385

    the series 2 does in fact have a barometric sensor built in, it's just not activated. So perhaps os4 will activate it
     
  25. wbrat macrumors regular

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    Sep 18, 2014
    #25
    I have bought AW2 yesterday (discounted) so sorry for my ignorance but does it have wifi at all? I don't see any option for joining wifi on AW2...
     

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30 September 13, 2017