I have not seen an in-depth review of the Samsung S850.

Here is an in-depth (10 page) review of the Canon A640:


It includes sample photos.

Samsung is rather new to the Camera world and Canon's middle name is camera.

I would prefer the Canon A640, even at $80 more.

If you want a lower price.....buy the A630.
It is the same camera and lens as the A640.