Looking at sample photos, the photo quality looks about the same to me.
The W1 has a much better video mode.
S5i maximum video is 320x240 at 15 frames per second.
W1 maximum video is 640x480 at 30 frames per second.
Note: you will need to buy the Memory Stick Pro to be able to use the 640x480 mode. The regual memory stick is too slow.
You should not email someone a 5 megapixel photo.
Even after .jpg compression it will have a file size of about 3 megapixels.
People with dial-up connections will not be happy with such a large download.
You should also reduce the size of the photo to 640x480 or 800x600. No one wants a photo that does not fit on the screen.
You can also post your photos on a website and your friends can go there and view the photos.
One free place I use is Webshots.
If you want to be able to link to a photo and just send the link, you need a website that will let you linking (most will not).
A free linking website I use is Photobucket.
Here is an example link:
Texas Bluebonnets and Crimson Clover.
I have two friends that love both cameras, so i'm in a bit of a bind. Both seem great to me. The size of the Pentax I like and I am looking for good picture and video quality. I'm willing to give up the size if the Sony's quality in those areas are far superior. The price is right for both. Downloading and emailing photos also a concern.(?) Any help is appreciated.