What is the different between bag and pouch?

I have a discussion with my co-worker about the difference between bag and pouch. I called a bag of 500/1000 gram, but she called a pouch of 500/1000 gram. I think the pouch means the standing bag, but the bag can't stand. Right?

[Milonius]

wut?

pouches are small and generally dont have internal pockets or compartments, bags do.

*unless its a specific use bag like a garbage bag or body bag

[wankerpants]

lol. way to talk to the robot mil

[MLfilms]

You'll learn when your older son