I am a gamer and I wanted to upgrade my current Samsung S20 to a Asus ROG Phone 5.
The phone says that it is GSM compatible but not CDMA (sprint/Verizon).
Is it possible to use Lum / Sasktel on this phone?
If it is the North American variant. It should be fine. You can also check what frequencies/bands your specific model has and compare it against the bands SaskTel uses: https://support.sasktel.com/app/answers/detail/a_id/25812/~/supported-frequencies-on-the-sasktel-wireless-network