Will the AT&T Samsung Galaxy S4 work in Canada with Telus

[Nepoxx]

The title says it all... I have an Amazon.com gift card that I would like to use in order to buy a Galaxy S4. I would like to buy the AT&T one because it is sold by Amazon.com directly (not a third party seller) and they take care of customs for me. I would like to know if I will be able to unlock it and use it with Telus in Canada.

Thank you everyone!

 

[Nepoxx]

Actually, I'm also considering the Sprint one... how would I figure out the compatibility? I can find some information online but a lot of it seem outdated (GSM, edge, etc).