How has Apple Watch affected iPhone battery life?

Discussion in 'Apple Watch' started by JayDH, Apr 25, 2015.

  1. JayDH macrumors 6502

    Jan 20, 2008
    Haven't seen many comments regarding this and it's something I'm curious about. John Gruber mentioned that his iPhone battery life was awful during the week he tested the Apple Watch, but didn't attribute it directly to the watch. Anyone see a difference?
  2. susan12369 macrumors 6502

    Apr 20, 2015
    I have noticed that it causes the iPhone's battery to drain a bit more quickly. Yesterday I had to recharge in the evening, which I rarely have to do. Today I've plugged the phone in when I've been in the car, and it's been fine (71% now, with watch at 64%).
  3. Sparkeze macrumors 6502a


    Sep 18, 2014
    I've been trying to notice this but since I got my watch I've been looking up a lot of stuff on my phone and using it a lot more than usual. So I haven't been able to tell if the battery is being used more from the watch or me.
  4. Uccle macrumors 6502

    Sep 22, 2012
    Interesting question. I haven't seen much degradation. Of course today my watch only made it to 6pm before it died so I *may* have been checking it a lot more than I did my iPhone ;)

    Maybe the connection drains the phone but not grabbing the phone and awakening it to check to see if there are messages/emails, etc. preserves the battery more than the connection drains it. My iPhone 6+ is still at 80% when it is usually closer to 40%...but it is a Saturday so that also makes a difference. Have to see how it plays out over time.
  5. fleetingftw macrumors newbie

    Apr 22, 2015
    Mine was draining a little quicker today but not a huge amount and I think mostly because I typically keep bluetooth off, so that alone being turned on I expected a little less battery life. Hasn't been an issue in a full day of use though.
  6. RhondaPVD macrumors newbie

    Apr 22, 2015
    My battery life has improved. Highest usage was always "home & lock screen" just turning it on to check. With the watch the phone stays in my pocket, less drain.
  7. StophMac24 macrumors 6502


    Jul 14, 2007
    I have been awake since 7:30AM and have been active.

    It is now 9:58PM.

    Apple Watch: 42%

    iPhone 6+: 78%

    Apple definitely went conservative on battery life estimates.

    My iPhone could easily go 3 days without a charge at this rate.
  8. TxRN macrumors member


    Apr 22, 2015
    On the move
    I've had to recharge my battery both yesterday and today. I've definitely noticed a difference. There has to be a way to reduce the power. Maybe reduce some of my notifications? I don't have many apps. IDK.
  9. aebloomfield macrumors newbie

    Jun 3, 2014
    It really takes a toll on the iPhone. No more all day without charge that's for sure.
  10. Mac128guy macrumors member

    Apr 25, 2015
    London, England
    I would think it would actually improve iPhone battery life because you are turning on the phone a lot less. At least that's what I've found since using my Pebble with my 6 Plus. Interesting to see some posts saying battery has decreased on their phones so far.
  11. Patriot24 macrumors 68030


    Dec 29, 2010
    This is the thing right here. Whatever additional battery drain that may be present due to Apple Watch/Bluetooth connected to the iPhone is offset by the fact that I don't need to use my iPhone nearly as much.
  12. AKRowdy macrumors regular

    Nov 2, 2011
    Using an iPhone 6. Usually have it down to about 20% by nowish. Currently at 38%. I don't use my phone nearly as much. Watch and iPad made up most of my casual / non-work usage. I even got an extraordinary amount of iMessage notifications.

    Seems superb so far!

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