Smarty
This is Smarty, a UK mobile network that sells SIM-only plans on rolling monthly terms, running on Three’s network. You pay upfront, there’s no contract and no credit check, and you can change plan as your data needs change.
No codes right now. We haven't confirmed a Smarty code or deal yet. Follow the store and we'll email you when one lands.
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Smarty discount codes and deals, October 2026
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Check prices at SmartySmarty: what to know before you buy
The story
Smarty says it started because there was a better way to do mobile. Its pitch is straightforward plans and no hidden fees, long contracts or confusing fine print. In its own words: no smoke, no mirrors, no spin.
The plans
Smarty sells SIM-only plans on rolling one-month terms, from small data allowances up to Unlimited. It also has group plans, data-only SIMs and eSIM options, plus a student SIM and a social tariff. The phone you already own is the one you use, so it suits anyone happy to bring their own handset.
Flexibility
With no contract, you can move up or down a plan each month as your usage changes. Because you pay for your plan upfront, there are no end-of-month bills to surprise you, and no credit check is needed to get started. Smarty says it doesn’t apply annual price rises to its rolling plans, and you can keep your existing number when you switch. Everything is run online or through its app, so checking usage or changing plan doesn’t mean queuing or waiting on hold.
Coverage
Smarty is powered by Three’s network, so the signal you get depends on Three’s coverage where you live. It offers 5G where coverage and a compatible handset allow. Coverage varies by address, so use its coverage checker for your home and workplace before you order. It also offers WiFi Calling on compatible devices.
Roaming
Calls and texts in the EU are included, along with a monthly data allowance to use abroad, though a limit applies. Smarty says the Unlimited plan has no fair usage limits in the UK and allows hotspotting.
Saving
Group plans let you bring several SIMs under one dashboard, which Smarty says saves on each SIM. A refer-a-friend scheme gives you both a gift card when a friend joins. Any live code is listed on this page: copy it and enter it at Smarty’s checkout.
Questions about Smarty
Are there any Smarty discount codes?
We don't currently list a confirmed discount code. That doesn't mean the store has no promotions; check its website for current prices.
Is Smarty a contract?
No. Smarty’s plans run month by month, so you can change plan or leave without being tied in. You pay upfront for each month.
Which network does Smarty use?
Smarty is powered by Three’s network. It offers 5G where coverage and a compatible phone allow, and has a coverage checker on its site.
Can I keep my number when I switch to Smarty?
Yes. Smarty says you can bring your existing number with you when you join.
Does Smarty need a credit check?
No. Smarty says that because you pay upfront for your plan, no credit check is required.
Can I use Smarty in the EU?
Yes. Calls and texts in the EU are included, along with a monthly data allowance to use abroad. Check its roaming page for the current terms.
Who handles my order?
You complete your purchase with the retailer. For order changes, delivery questions or a refund, contact the seller shown on your order confirmation. Vouchernaut publishes shopping guides and offers; we don't process your purchase.
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