What to compare
- Monthly data allowance and any fair-use limits
- Included calls and texts
- Contract length and notice period
- Roaming rules and international use
- Price-change terms
- Any activation, delivery or other charges
When SIM-only can make sense
If your current phone still works well, SIM-only can separate the cost of your mobile service from the cost of a handset.
Questions worth asking
Check whether the allowance resets monthly, whether unused data rolls over, how roaming is treated, and what happens when the minimum term ends.