Checked 26 Oct 2026
SIM only · Providers
SMARTY SIM only deals and prices
Budget brand on the Three network, owned by VodafoneThree. All plans roll monthly.
- Network
- Three
- Contract
- 1-month rolling
- Price rises
- None stated on rolling plans
- EU roaming
- Included
- Data
- 5GB to unlimited
What to watch for
- SMARTY says its rolling plans don't have annual price rises.
SMARTY SIM-only deals
5 deals
Checked 26 Oct 2026
Checked 26 Oct 2026
SMARTY
100GB
- 100GB data
- 1-month rolling
- Three network
Special offer: 140GB for the same £12 if you buy now.
Check Three coverage at your postcodeChecked 26 Oct 2026
Checked 26 Oct 2026
What happens when you click View deal: you go to the provider's own site to check your address and order. Your contract and any problems with installation or billing are with the provider. MoneyRoute never takes payment or your details.
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Compare SMARTY with other providers at the same data allowance: Up to 20GB SIM only deals · 20GB to 99GB SIM only deals · 100GB+ SIM only deals · Unlimited SIM only deals
SMARTY offers and promo codes
- 100GB: Special offer: 140GB for the same £12 if you buy now.
Promo codes: we don't list them, because SIM only discounts are usually built into the advertised price rather than unlocked with a code. Codes on voucher sites are often expired or for other products.
Already with SMARTY? Its plans roll monthly, so you can move to a cheaper plan or provider whenever you like.
About SMARTY
SMARTY runs on Three's network and is part of VodafoneThree.
All its plans are one-month rolling plans with no long contract or cancellation fees.
What you get with SMARTY
- 5G, Wi-Fi Calling and eSIM.
- Extra data for £1 per GB, which doesn't expire while you have a live plan.
- EU roaming using your UK allowance, with a 12GB monthly limit on bigger plans.
SMARTY contracts and getting started
- No credit check, because you pay upfront.
- SMARTY says it doesn't do annual price rises: your price stays the same from the day you sign up.
- The SIM comes by post and activates from your online dashboard, usually within minutes.
How SMARTY compares
SMARTY's top-ranked deal, 5GB, against the best deal from each other provider in the same data range (Up to 20GB), by monthly price.
| Provider | Deal | Monthly price | Contract |
|---|---|---|---|
| SMARTY | 5GB | £6/mo | Rolling |
| Talkmobile | 10GB 30-day | £5.95/mo | Rolling |
| iD Mobile | 10GB 1-month | £6/mo | Rolling |
| giffgaff | 20GB rolling | £10/mo | Rolling |
| VOXI | 20GB + unlimited social | £10/mo | Rolling |
| Vodafone | 5GB | £19/mo | 24 months |
On the same network as SMARTY: iD Mobile, Three.
SMARTY customer service and complaints
Ofcom only publishes complaint figures for the largest providers, so there are none for SMARTY yet. If you have a problem, complain to SMARTY first; after six weeks, or sooner if they say they can't resolve it, you can take it to an Ofcom-approved dispute resolution scheme for free.
Webchat runs 8am to 8pm, with a 24/7 bot, a help centre and a community forum.
Sources: Ofcom telecoms complaints (January to March 2026, published 23 July 2026)
SMARTY SIM only questions
How much does SMARTY SIM only cost?
The cheapest SMARTY deal we list is 5GB at £6 a month on a rolling plan. The 5 SMARTY deals we list range from £6 to £20 a month.
Does SMARTY put prices up mid-contract?
SMARTY's plans roll monthly, so there's no contract to rise within. SMARTY says its rolling plans don't have annual price rises.
Does SMARTY include EU roaming?
Yes, every SMARTY plan we list includes EU roaming. Fair use limits apply; see each plan.
What network does SMARTY use?
SMARTY runs on Three's network, so coverage is the same as Three's. Other brands on the same network include iD Mobile, Three.
Does SMARTY have a social tariff?
SMARTY's social tariff gives unlimited data for £12 a month with no annual price rises and no credit check, for people on eligible benefits.
Are there SMARTY promo codes?
We don't list promo codes, because SIM only discounts are usually built into the advertised price rather than unlocked with a code. Every current SMARTY price we list is above, checked against SMARTY's own site.
Can existing SMARTY customers get these deals?
SMARTY's plans roll monthly, so you're not tied in: you can move to a cheaper plan or another provider whenever a better deal comes along.
How do I switch to SMARTY?
Order a SIM or eSIM from SMARTY. To keep your number, text PAC to 65075 from your current phone, then give the code to SMARTY; your number usually moves within one working day, and your old contract ends when it does. Check whether you'll owe an exit fee before you switch.
Other SIM only providers
Sources, checked October 2026: smarty.co.uk · smarty.co.uk · smarty.co.uk · help.smarty.co.uk · smarty.co.uk