HTC Wildfire was created in 2010.
Yes it has a 5mp camera and video phone.
HTC Wildfire S was created in 2011.
They are both similar but the HTC wildfire S is the more improved version and is smaller and easier to use.
The HTC desire is better because it has more features. But if you're on a budget then the HTC Wildfire is good.
The HTC Wildfire S is better than the HTC Explorer because it has more features.
Yes the wildfire S has a smaller body and only a 3inch screen and the graphics are better than the wildfire.
HTC Wildfire supports microSD cards by all the manufacturers.
The HTC Wildfire S has a 5 megapixel with flash.
The HTC Wildfire is rated better than an HTC Desire. This can also depend on who is voting for it, as well. Some people prefer the Wildfire because it is a little bigger.
The wildfire S. Better processor, better graphics and newer version of HTC sense and android OS are the highlights of the wildfire S. But you might find that the wildfire is cheaper (although the wildfire isn't exactly too expensive either!)