Skip to content

iPhone 5 Display vs. iPhone 4 Display

I always raise my eyebrows just a bit when it comes to marketing, but the last time Steve Jobs invoked the Retina Display moniker, the vision scientist in me checked to see if his claims held up and sure enough, they did.  This time I was not so concerned withthe technical details of Apple‘s marketing claims, but was more interested in seeing if the displays, viewed up close could be distinguishable between the new iPhone 5 and my older iPhone 4.

I’ve been looking at the pixels in the new iPhone 5 over the last few days and it really is a higher quality display than the Retina Display in the iPhone 4.  Subjectively, looking at the display there is more contrast, the blacks are blacker and the colors are more intense.  The iPhone 4 display is very, very good.  So, would the iPhone 5 display be appreciably better?  Anyone can subjectively look at photographs and when you do, you can tell that there is more vibrance, but I wanted to get closer by inspecting the pixels in a stereomicroscope.

I took both the new iPhone 5 and the older iPhone 4 and placed their screens on maximum brightness, then imaged them with the same settings with my stereomicroscope and a Canon 1D Mk III camera.  Magnification was held constant in all captures.

The image above gives you some idea for the two displays, but what is more difficult to appreciate from these 2D images is that the pixels in the iPhone 5 are closer to the surface of the glass than in the iPhone 4.  This is because Apple has integrated the touch sensor into the display and not layered it on top of the glass.  Its hard to appreciate the depth of the pixels without a 3D image that you can move around, but the iPhone 4 pixels are appreciably deeper in the display and thus further away from the surface than they are in the iPhone 5.  The iPhone 4 made a huge jump in pixel distance from the glass surface from the iPhone 3, and while this is not such a huge jump in distance as the iPhone 3 to 4, the results can be seen even without benefit of 3D viewing, particularly in the black or dark regions of the display.

 

However, looking at higher magnification is where you can really see the difference in images.  It turns out that the pixels in the iPhone 5 are *precisely* the same size as the iPhone 4 pixels, but the iPhone 5 pixels have better color saturation with more contrast, seen particularly in the blue pixels.  I did not calculate the difference in color saturation between the two iPhones, but it is pretty clear to the eye which is which.  Apple claims 44% increase in color saturation and from these images, I believe them.

Update: 09/27/12: Jeff Yurek does a really nice analysis of the spectra of the iPhone 4s vs. 5 screen here.

Interestingly, it almost looks like the *shape* of the pixels in the new iPhone 5 are a little crisper as well.  The edges of the subpixels seem more squared in the iPhone 5 than in the iPhone 4.  It would take a more powerful stereo microscope than I have to truly quantify the shape differences.  These sorts of things seem small at the micron level, which is the scale that we are talking about, but they really do end up making a big difference in perception.  And if you are spending huge amounts of time with a device, like you do your phone, that level of detail ends up being a big difference in eye strain and fatigue.

 

 

Categories: Gear, News (Apple Inc.), News (Technology), Small Life.

Tags: , , , ,

Comment Feed

13 Responses

  1. Excellent & informative article. Thank you.
    For all of you nay sayers out there: I brought my iPhone4 to a store & compared it to the iPhone5. Holy mackerel, what a big difference between the iPhone4 & the iPhone5 screens. Sharper, brighter & richer colors. As seen with my naked eye!
    Kindest regards Mr. Jones.

    camerabillyNovember 26, 2013 @ 3:44 pmReply
« Older Comments



Some HTML is OK

or, reply to this post via trackback.

Continuing the Discussion

  1. […] a színek az új telefonon. Bár ez utóbbit nagyon nehéz mérni, volt aki mégis megpróbálta. A Jonesblog szerkesztője, Bryan Jones fogott egy Canon 1D MKIII-as fényképezőgépet és egy […]

  2. […] worth linking is the photo set of retinal neuroscientist and photographer Bryan Jones. He took macro shots of the iPhone 5 and iPhone 4 to compare color quality, then put them both […]

  3. […] wäre die Entscheidung für den 4-Zoll-Wechsel wesentlich schwieriger – egal wie großartig das neue Display ist. In all, it’s an exceptionally well-calibrated and accurate display for any […]

  4. […] contrast is 44% higher, while maintaining the screen 326 dpi Retina. But for a deeper analysis, Bryan Jones has made a comparison between the iPhone 5 and the iPhone […]

  5. […] que mantiene los 326 ppp de la pantalla Retina para iPhone. Pero para un análisis más profundo, Bryan Jones ha realizado una comparativa entre ambas con un estereomicroscopio. Este científico de la […]

  6. […] Bryan Jones compares the iPhone 5 display with that of the iPhone 4 with a stereomicroscope on his blog. He place both screens on max brightness and then snapped pictures with his stereomicroscope and […]

  7. […] Bryan Jones compares the iPhone 5 display with that of the iPhone 4 with a stereomicroscope on his blog. He place both screens on max brightness and then snapped pictures with his stereomicroscope and […]

  8. […] why does this display look so good?  It turns out that what is different, like the iPhone 5 vs. the iPhone 4 is the proximity of the pixels to the glass in the iPhone 6 compared with the iPhone 5.  With […]