Smarty SIM only deals
12 Smarty SIM only plans in our comparison, from £6 a month, 1 with unlimited data, 12 on rolling one-month terms. Data, price and contract length on each, with any mid-contract rise stated.
Deals come from our comparison partner and MoneyHQ may earn a commission if you take one.
Smarty SIM only plans right now
12 plans, £6 to £17 a month. 1 with unlimited data. 7 on 5G. 12 rolling one-month. None state a mid-contract rise.
| Data | A month | Contract | Sold by | Rise |
|---|---|---|---|---|
| 18GB · 5G | £6 | Rolling | smarty | No mid-contract rise stated |
| 24GB | £7 | Rolling | Mobile Phones Direct | No mid-contract rise stated |
| 40GB · 5G | £7 | Rolling | smarty | No mid-contract rise stated |
| 16GB | £8 | Rolling | Mobile Phones Direct | No mid-contract rise stated |
| 75GB · 5G | £8 | Rolling | smarty | No mid-contract rise stated |
| 95GB · 5G | £9 | Rolling | smarty | No mid-contract rise stated |
| 100GB · 5G | £10 | Rolling | smarty | No mid-contract rise stated |
| 80GB | £10 | Rolling | Mobile Phones Direct | No mid-contract rise stated |
Figures read from our comparison partner’s feed on 17 September 2026. Prices, allowances and rises are stated by each provider and can change.
Smarty SIM only: questions people ask
What is the lowest Smarty SIM only price?
On 17 September 2026 the lowest monthly price we saw on Smarty was £6 a month for 18GB on a rolling one-month plan. That deal states no mid-contract rise.
How much is unlimited data on Smarty?
The lowest unlimited-data price we saw on Smarty was £17 a month on a rolling one-month plan, one of 1 unlimited plans in the comparison.
Can I get a Smarty SIM with no contract?
Yes: 12 of the 12 Smarty plans we saw are rolling one-month plans you can leave with a month's notice.
Do Smarty SIM only prices rise mid-contract?
None of the 12 Smarty plans in our sample stated a mid-contract rise on 17 September 2026.
Are Smarty SIM only deals 5G?
7 of the 12 plans we saw are 5G. Your phone must support 5G and you need 5G coverage where you use it.