title: iPhone Image sizes
body: <p>I'm current running the <code>iPhone 6</code> simulator in my project.
  I know with different iPhones you need different resolution settings.</p>
  
  <p>If I want to develop for the <code>iPhone 4</code>, <code>5</code>, <code>6</code> and <code>6+</code>. In my situation, what should be the sizes for <code>4</code>, <code>5</code> and <code>6+</code>. I think I don't need to change <code>6</code> because I'm using it as my base. 
  (If you could, please add iPad to list) </p>
  
  <p>If someone could in direct me to how iOS automatically selects the right image resolution according to what device they have.</p>
  
  <p>Any questions just comment! </p>