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SMARTY SIM Deal
Uses Three Mobile's Network
Unlimited5G data
£18.00 a month
1 month contract
Includes roaming in 45 destinations
Your SMARTY SIM deal
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Smarty uses Three's network, bringing 4G outdoor coverage across 99% of the UK.
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Smarty's average download speed on Three's network is 38Mbps. Based on Opensignal's network experience report (September 2024).
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SMARTY let you use your allowances in the EU, up to a 12GB data limit. Extra charges apply outside this.
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Cost breakdown
Your contract
Monthly cost for 1 month (from 1 January 2026)
£18.00
Total cost
£18.00
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How are price rises calculated?
Some providers set annual price rises to cover predicted changes in service costs. This is usually linked to inflation, but from January 2025 they have to tell you the exact amount upfront.
In our breakdown, we've assumed your first bill will be next month, and your billing date falls after the date any price rises come into place. -
Minutes and texts
- Minutes
- Unlimited
- Texts
- Unlimited
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Simple, keenly priced plans and no long contracts
Priced from £7.50 per month, Smarty's Small, Medium and Large plans all operate on a month-to-month rolling contract basis. So you're not locked in for a long time and can cancel whenever you like with 30 days' notice.
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No credit checks
You can sign up to a SMARTY without the need for any credit checks.
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Uswitch Awards Best Network for Data 2025
Customers must purchase the deal directly from the retailer's website. Prices, plan names and offers all based on information received from suppliers. Deals and vouchers offered are subject to availability and may not be available to existing customers. Until 2024, many mobile networks have increased contract prices in line with inflation. Starting in January 2025, Ofcom will introduce a ban on inflation-linked price hikes for new contracts. Future price changes will need to be set and fully disclosed in pounds and pence. Please refer to individual retailer's terms and conditions before applying.