What is the best resolution for a web camera?

I want to buy Digital Camera. Are these good specs?

• AUKFA 12.0MP Digital Camera + Video Recorder + Voice Recorder + WebCam + Game Player everything needed to take picture,record video or voice and download to computer Powerful software tools to edit photo or video, to make electronic album or make your own movie! Features * 12.0 Mega Pixels Picture Resolution ! * High Resolution Digital Still Camera - with 12.0MP high resolution * Digital Video Recorder - record 640x480 high resolution movie ! * PC Web Camera - take 640x480 live video,* Voice Recorder - Take picture with voice memo, record video with audio or record voice only ! * Mass storage - can be used as storage like mobile disk, to store any computer files or photos ! * 16MB internal memory, with slot for SD card enables you to increase storage up to 1GB ! * With Micro function, you can shot close-up picture ! * 9 scene function Item comes from Hong Kong.....should that worry me?

• Answer:

  Well, it depends what you want out of it. I saw this on Ebay. It's not really 12 megapixel, but it is interpolated. That means it creates extra pixels by guessing the pixels in between the real pixels. This means the quality is only as good as the real megapixels it is capable of which is 5.1. If you want just a camera to take good pictures with, I would look for a name brand camera. It will cost you about $150 and you will get much better results. Usually a guideline is, if it is small, does "everything", has fantastic specs, and is cheap, it's usually not as good as it sounds. Personally I would stay away from this, but of course the choice is yours...