Different Screen Resolution in Windows Mobile Devices

We were trying to fix some high resolution bugs in our software the other day, when it occurred to me that many people (and I'm among them) are not fully clear about the different resolutions of Windows Mobile.

I decided to give it a try and summarize what I know:

Screen resolution typically stands for the number of pixels displayed horizontally and vertically.

Classic Windows Mobile devices used to have 240x320, and then came the mobile phones with built in QWERTY keyboard (Candybar QWERTY form factor) which had a square screen - 240x240.

In many cases, screen resolution refers to the quality of the display. In other words: pixel density. The term used is DPI (dots per inch), and it refers to the number of dots that can be squeezed into a single inch. More dots means higher quality of course.

The default setting of 96 dpi implies that there are 96 pixels per horizontal inch of screen area - and this is known as the QVGA. Full VGA would have 192 DPI. VGA also refers to 480x640 screens combines with 192 DPI.

Oh, and let's not forget WVGA (Wide VGA) which will also have 192 DPI but with even bigger screens like 800x480 or 848x480.

And now for the juicy part:

You cannot refer to screen resolution using just one of the definitions above. In fact, if you wish to analyze the quality of the screen - you need to know both the DPI and the number of pixels.

Here's a list of different Windows Mobile screen resolutions:


Now that we know everything about screen resolutions:

Here's some devices specs:

HTC Touch Diamond:  VGA, 480 x 640 pixels, 2.8 inches.

Samsung Omnia:  WQVGA (Wide QVGA), 240 x 400 pixels, 3.2 inches.

HTC Touch HD:  WVGA (Wide VGA) 480 x 800 pixels, 3.8 inches.

Palm Treo Pro:  QVGA, 320 x 320 pixels.

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Pony99CA said…
The list of screen resolutions is incomplete. It doesn't list the non-touchscreen WM Standard ones. ;)

Guest said…
Try this, Can anyone confirm it right?
Windows Mobile 6 Standard 

Windows Mobile 6 Standard (176x220 pixels - 96 dpi)
Windows Mobile 6 Standard Landscape QVGA (240x320 pixels - 131 dpi)
Windows Mobile 6 Standard QVGA (320x240 pixels - 131 dpi)
Guest said…
Windows Mobile 6.1 Standard
DPI: 131 - Resolution: 320 x 320 pixels
DPI: 131 - Resolution: 400 x 240 pixels
DPI: 131 - Resolution: 440 x 240 pixels