I've been on the search for a new phone as my Galaxy Ace is trying my patience! I can't afford a $200-$300 phone as much as they make me drool with their better workability and such. So, I've been checking out phones that are more or less knock-off versions of the S3, S4, S5 and the available mini versions. ie everbuying, crov, etc. Would a SIM card work in any knock-off, including prepaid, or would the phone have to be sold in a Canadian store?