42mm battery size 243mah?

Discussion in 'Apple Watch' started by AmazingBobbery, May 4, 2015.

  1. AmazingBobbery macrumors newbie

    May 4, 2015
    I'm trying to find information on the capacity of the 42mm apple watch. The fixit teardown revealed that the 38mm carries a 205mah battery. Assuming the 42mm is 10% bigger in two dimensions and all components just scale, then you'd expect the battery to be 240mah.

    So far the only thing I could find is this picture: http://www.techinsights.com/teardown.com/apple-watch/ that shows 3.78 volts and 0.93 Whr for the 42mm. Whereas the 38mm has 3.80 v and 0.78 whr. So that implies a 243mah battery. Can anyone confirm that?

    I would have thought the S1, speaker, ports, etc would have all stayed the same size wrt the 38mm, so that would leave more room for a bigger battery?

    Eitherway, remarkably energy efficiency of these devices.
  2. rocketkev macrumors member

    Oct 10, 2011
    I've honestly looked for this information everywhere since launch and I can't find anything regarding the mah battery size in the 42mm Apple watch. If anyone knows, please chime in.
  3. Twyntub macrumors member

    Jul 13, 2007
    .93Wh/3.78V = .246Ah which is exactly 20% larger.
    Screen is 121,680px/92,480px = 31.57% more pixels or more load for the 42mm.

    The engineering is massively impressive...
  4. ttNB, May 23, 2015
    Last edited: May 23, 2015

    ttNB macrumors 6502


    Sep 21, 2012
    Nor' Jersey & New York (Twi-State)
    The 42mm has 246 mAh battery.
    3.78V @0.93 Whr.

Share This Page