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what is the standard size of buttons in iPhone(640*960) as specified by Apple Inc.

user1395474
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  • Check this: http://stackoverflow.com/questions/1928991/minimum-sensible-button-size-on-iphone – Rushi May 15 '12 at 07:17
  • Be more specific. What do you mean by a button? And there is no difference in size between retina and non-retina devices - on screen content is measured in points, not pixels, and the retina device just has twice as many pixels in each dimension. – jrturton May 15 '12 at 07:34
  • Related to @Rushi's comment: The 960-by-640-pixel resolution translates to 326ppi = 12.835px/mm. Aiming for 9.2mm gives **118px diagonal**. This is not "as specified by Apple" but what research has shown, cf. the linked question. – jensgram Jun 08 '12 at 08:16

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The buttons are of size 44x44.

Images for toolbar and navigation icons should be 20x20,

and for tab bar icons should be 30x30.

Ronak
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