Upvote:1
Provided your phone is SIM-unlocked, you should get both GSM/2G and 3G service in Russia. Fido will unlock your phone for $50, or you may be able to find unsupported hacks on the Internet if you're willing to risk bricking the phone...
This phone has all four world GSM bands, so it can be used for 2G almost anywhere, and 900 and 2100 MHz 3G bands. Russia uses the 2100 MHz 3G band, so is compatible with the device.