You can find Koodo network information here https://www.koodomobile.com/en/help/my-phone-compatible-koodo From that you could check the specifications of the phone and find out if the phone is compatible or not. The IMEI tool isn’t always correct btw.

Great, I just did some research and found my device is compatible with 850 MHZ. Is that enough, or does it have to be compatible with more than one frequency?

If your phone only had 1 compatible band, it might not work well in all area. I recommend you not to buy it. Otherwise, it would be a headache to find which location is good and which isn’t.

Thank you so much!