hi. I live in Toronto but currently I am in pakistan for vacation. I saw a great phone called the samsung galaxy J7 (2016). I was wondering if I could use it with koodo. keep in mind I am not with koodo currently, nor have I ever been. thanks!
And for the future, you can use willmyphonework.net as you can select almost any phone in the world to see if it works with almost any carrier in the world. I dare say that it will work at least 99% of the time.
Also if you intend to port to Koodo, make sure you get someone who you know with Koodo to refer you so you and the referrer get credit. If you don't know anyone, you can always ask here.
P.S. I have no idea how much the J7 goes for in Pakistan, but unless you are smitten with Samsung or maybe the camera is a lot better and worth it, there's better phones for less or the same price. You should be able to get the Moto G4 Plus for a similar price or less and it's better spec'd. Or a Xiaomi Redmi Note 3 Pro, or Redmi Note 4.