Yes, on our mobile network you can use unlocked mobile phones and devices that weren't bought from Spark. But, you'll need to make sure your mobile is compatible with our mobile network and can operate at an 850MHz frequency.
Just use our Mobile Compatibility checker to see if you can connect your mobile device to our mobile network.
Please note: As your mobile isn't supplied by Spark, we can't guarantee its performance on our network. But we will provide as much support as possible.