The average megapixel of webcams that were launched around the same time as this webcam is 2.5MP. The M-Cab 7009029 has a fairly low megapixel (only 0.3 megapixels) compared to most of the other webcams that have been available for a similar time to this webcam.
It may also be worth also looking at one of the other 0.3MP webcams currently available including the Konig IP Camera (£29.95), or the MSI StarCam Clip which both of have better reviews.
If you are looking for a webcam with a higher megapixel then you might want to look at the Digitus DN-16047 (£70.68) (1MP), or the Axis M1144-L (£423.98) (1MP).
What does "megapixel" mean?