LifeAlert type app?

Discussion in 'Apple Watch' started by temna, Mar 10, 2015.

  1. temna macrumors 6502a


    May 5, 2008
    I wonder if there will be an app to warn people if something happens to a watch wearer, say the heart beat goes above or below a certain threshold it texts or emails an emergency contact. I think this might be an interesting idea for an app for a device with heartbeat monitor and attached to a phone.
  2. Mabus51 macrumors 65816

    Aug 16, 2007
    could you imagine all the false alarms? Sorry not a heart attack just having sex. lol
  3. KenAFSPC macrumors 6502a

    Sep 12, 2012
    Use of the heart rate monitor consumes battery life even faster than using the Watch as a phone. Thus, it is not feasible for the Apple Watch to regularly check your pulse, much less do so continuously.
  4. T-Will macrumors 6502a


    Sep 8, 2008
    I don't see why it couldn't check the pulse of the wearer every 5 minutes or something like that to save battery life.
  5. richwoodrocket macrumors 68020


    Apr 7, 2014
    Hamburg, NY
    Thats the opposite of saving battery life... Youre suggesting to save battery life that the watch execute another process? hmmm...
  6. mailboxbetacoin macrumors 6502

    Aug 19, 2014
    No, there won't be any such app:
    - Apple is not going to make such app
    - 3rd party developers don't have access to the heart rate monitor (will at some point in the future though)
    - 3rd party developers can't have an app running as a background process (and that won't change any time soon for sure...)
  7. temna thread starter macrumors 6502a


    May 5, 2008
    The app technically could run on the iPhone, using health kit.
  8. troop231 macrumors 603

    Jan 20, 2010
    I've already tried submitting an app similar to this using HealthKit and Apple rejected it; it's a lost cause.
  9. betabeta macrumors 6502a

    Jun 28, 2013

    This is an outstanding idea, forget sending to a company, your right just a simple text to a loved one.

    Grandma falls, watch knows this due to velocity location to floor, and duration, then it simply sends me a text saying check on grandma, I call to see what's up, no answer and I'm on my way to make sure all is ok.

    This is just a great idea, I use to look over a friend of the family that was in her 90's at the time, she fell down the stairs and out of total grace of God we we found her 12 hours later at the bottom of the stairs, she was barely conscious and she ended up being OK, the next day she may have not made it.

    Now I know this watch could detect a fall like that and just a simple text to me would have been great, I don't mind a few false alarms plus the watch knows when it's off the wrist.

    And yeah life alert is fine and dandy but not for everyone plus this watch does so much more.
  10. T-Will macrumors 6502a


    Sep 8, 2008
    The discussion was to have the heart rate monitor run constantly and notify emergency help if the BPM goes above or below a certain amount. The problem is running the heart rate sensor constantly will drain the battery in 7 hours. So I was just suggesting only run it for a few seconds every 5 minutes to allow this to work all day. :)
  11. Technodynamic macrumors 6502


    Jul 25, 2012

    If heart stops, email will to attorney
    If heart stops, text wife to-do list.

    Kidding, but, could be done.

    This is a great idea, and not for gen 1, but you know this is coming down the pike when battery life can handle the heart rate running all the time.
  12. Michael CM1 macrumors 603

    Feb 4, 2008
  13. Lennyvalentin macrumors 65816


    Apr 25, 2011
    To warn you if your BPM goes above 120 and you turn green and Hulk out...? ;)
  14. KenAFSPC macrumors 6502a

    Sep 12, 2012
    Running the heart sensor (which emits light more or less like a flashlight pointed toward your wrist) constantly would probably drain the battery in 2 hours or less. You might get 7 hours life if the sensor is run once every five minutes.
  15. T-Will macrumors 6502a


    Sep 8, 2008
    According to this page, you get 6.5 hours in "workout mode" with the heart rate sensor on. They don't specify how often the heart rate is checked in this mode though, so you could be right.
  16. twisted-pixel macrumors 6502a


    Sep 13, 2009
    San Jose, CA

    so any ideas how this would work if I'm out on a 10 mile run?

    At the moment I use ismoothrun, pebble watch and Wahoo HR Monitor. I'm not uber fit so 10 miles takes me 2 hours or so

    I've love to replace the HR strap with the apple watch, but not if it means that it only tracks my HR for 1 hour, then dies....or only tracks it once every 10 mins.

    Assuming of course that there is an app I can use like ismoothrun to give me the info I want anyway
  17. T-Will macrumors 6502a


    Sep 8, 2008
    I don't think Apple has ever specified how often it checks heart rate while in workout mode, so it would just be a guess at this point. I would assume it checks it more often than every 10 mins though.
  18. betabeta macrumors 6502a

    Jun 28, 2013
    I would hope every 5 min, but the real key is not how often, but WHEN. So it's important to get readings at certain points of a workout, maybe during the peak, during the cool down its more often.

    So maybe it's every 10 min, your heart rate hits 125+ and it starts checking every 3 minutes, something like that, but no need to be so often during the entire workout.

    I always check pulse after a run, and during this cool down phase I check it often to see how fast it goes back down.

    Shouldn't take much battery, as I'm sure there is some Apple secret sauce, like light intensity dependent on finding blood vessels and it only needs a quick check and multiply to figure it out.

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17 March 10, 2015