SD or HD on iPhone

Discussion in 'iPhone' started by AppleFan115, Jul 7, 2012.

  1. AppleFan115 macrumors regular

    Mar 8, 2012
    Is there any noticable difference between playing a SD of HD movie on the iPhone 4S. SD still has more pixels than the iPhone display so there isn't any difference in quality. Is that correct?
    Thank you.
  2. ThatsMeRight macrumors 68020

    Sep 12, 2009
    Depends on what the SD resolution is. You won't notice any differences with any resolution higher than 960 x 640.
  3. AdrianK macrumors 68020

    Feb 19, 2011
    What standard are you looking at?

    'SD' tops out at 576i/p, so a maximum of 720*576 pixels, that's less than the iPhone 4/4S' display.
  4. AppleFan115 thread starter macrumors regular

    Mar 8, 2012
    Okay. So when you weigh the opitions, SD is the better route to go. Unless I'm really picky and want it a tad bit crisper. HD will infact be slightly better due to SD not meeting the iPhone 4S display.
  5. AdrianK macrumors 68020

    Feb 19, 2011
    Well, that depends, if you're talking about movies sourced from iTunes then the resolution is less than 720*576. They're only 640*480 (anamorphic to fix the AR) IIRC.

    Eg for a 16:9 movie:

    720p will give you 960*540 pixels [518400] on screen.
    480p will give you 640*480 pixels [307200] on screen (stretched to 960*540).

    720p will give you 41% more pixels.

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