Smarty's one-month SIM-only plan sits in the budget end of the Three network, competing with the likes of giffgaff, VOXI and iD Mobile for people who want flexibility without a long contract. You're getting unlimited UK data, minutes and texts with 5G access where available, plus the reassurance that you can cancel at any time if coverage or speeds don't suit you.
Who does a 30-day unlimited plan make sense for?
If your usage swings month to month, a rolling plan can be more sensible than a 12-24 month commitment. Unlimited data is useful for heavy streaming, hotspotting and commuting, while the included EU roaming allowance helps if you travel but don't want to rely on airport Wi-Fi.
- Unlimited UK data on 5G (coverage dependent) for high-usage phones and tethering
- Unlimited minutes and texts for call-heavy users
- EU roaming: 12GB fair-use, enough for maps, messaging and some streaming abroad
