Keep your phone. Save money. Switch to SIM Only with Olimit and start saving today.
Compare the best SIM Only deals now and see how much you could reduce your monthly bill.
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Use our filters to find the perfect plan — adjust data, contract length, and price to match your needs and budget.
Need help deciding? Explore our guide to getting a UK SIM card and see how SIM Only compares to a phone contract.
Olimit Tips & Tricks
How do I switch SIM only deal and keep my number?
1. Choose your new SIM Only deal
Compare the best SIM Only plans from top UK mobile networks. Once you find a deal that fits your needs, click through to the provider’s website to place your order.
2. Get your PAC code to keep your number
Want to keep your existing mobile number when switching networks? Text PAC to 65075 to get your code instantly — it’s quick, free, and works on all major UK networks.
3. Transfer your number to your new SIM Only plan
After signing up for your new SIM Only deal, give your PAC code to your new network. This will begin the number transfer process and automatically cancel your old contract. In most cases, you can enter your PAC code during checkout when switching SIM Only deals online.
Why is my SIM Only contract price increasing?
SIM Only plans often go up in price once a year — usually around March or April. These mid-contract price hikes used to follow the Consumer Price Index (CPI), but Ofcom now requires mobile networks to clearly state any increases in pounds and pence in your contract.
Not happy with the change?
Check when your current contract ends and set a reminder to switch. If you’re unsure about your status, text ‘INFO’ to 85075 — this free service will tell you whether you’re still in contract and if you can switch providers without paying an early exit fee.
Ready to switch?
Compare the best SIM Only deals at Olimit and take back control of your mobile bill.
£10
4 Roaming Destinations
20GB
Iceland 🇮🇸
Ireland 🇮🇪
Isle of Man 🇮🇲
Norway 🇳🇴
Networks Using:
Select By All Networks
Data
Price
Contract Length
Roaming Destinations
Additional
45 Roaming Destinations
12GB
Åland Islands 🇦🇽
Austria 🇦🇹
Azores 🇵🇹
Balearic Islands 🇪🇸
Belgium 🇧🇪
Bulgaria 🇧🇬
Canary Islands 🇮🇨
Comoros & Mayotte 🇾🇹
Croatia 🇭🇷
Cyprus 🇨🇾
Czech Republic 🇨🇿
Denmark 🇩🇰
Estonia 🇪🇪
Finland 🇫🇮
France 🇫🇷
French Guiana 🇬🇫
Germany 🇩🇪
Gibraltar 🇬🇮
Greece 🇬🇷
Guadeloupe 🇬🇵
Hungary 🇭🇺
Iceland 🇮🇸
Ireland 🇮🇪
Italy 🇮🇹
Latvia 🇱🇻
Lithuania 🇱🇹
Luxembourg 🇱🇺
Madeira 🇵🇹
Malta 🇲🇹
Martinique 🇲🇶
Netherlands 🇳🇱
Norway 🇳🇴
Poland 🇵🇱
Portugal 🇵🇹
Réunion 🇷🇪
Romania 🇷🇴
Saint Barthélemy 🇧🇱
Saint Martin 🇲🇫
San Marino 🇸🇲
Slovakia 🇸🇰
Slovenia 🇸🇮
Spain 🇪🇸
Sweden 🇸🇪
Vatican City 🇻🇦
45 Roaming Destinations
12GB
Åland Islands 🇦🇽
Austria 🇦🇹
Azores 🇵🇹
Balearic Islands 🇪🇸
Belgium 🇧🇪
Bulgaria 🇧🇬
Canary Islands 🇮🇨
Comoros & Mayotte 🇾🇹
Croatia 🇭🇷
Cyprus 🇨🇾
Czech Republic 🇨🇿
Denmark 🇩🇰
Estonia 🇪🇪
Finland 🇫🇮
France 🇫🇷
French Guiana 🇬🇫
Germany 🇩🇪
Gibraltar 🇬🇮
Greece 🇬🇷
Guadeloupe 🇬🇵
Hungary 🇭🇺
Iceland 🇮🇸
Ireland 🇮🇪
Italy 🇮🇹
Latvia 🇱🇻
Lithuania 🇱🇹
Luxembourg 🇱🇺
Madeira 🇵🇹
Malta 🇲🇹
Martinique 🇲🇶
Netherlands 🇳🇱
Norway 🇳🇴
Poland 🇵🇱
Portugal 🇵🇹
Réunion 🇷🇪
Romania 🇷🇴
Saint Barthélemy 🇧🇱
Saint Martin 🇲🇫
San Marino 🇸🇲
Slovakia 🇸🇰
Slovenia 🇸🇮
Spain 🇪🇸
Sweden 🇸🇪
Vatican City 🇻🇦
45 Roaming Destinations
12GB
Åland Islands 🇦🇽
Austria 🇦🇹
Azores 🇵🇹
Balearic Islands 🇪🇸
Belgium 🇧🇪
Bulgaria 🇧🇬
Canary Islands 🇮🇨
Comoros & Mayotte 🇾🇹
Croatia 🇭🇷
Cyprus 🇨🇾
Czech Republic 🇨🇿
Denmark 🇩🇰
Estonia 🇪🇪
Finland 🇫🇮
France 🇫🇷
French Guiana 🇬🇫
Germany 🇩🇪
Gibraltar 🇬🇮
Greece 🇬🇷
Guadeloupe 🇬🇵
Hungary 🇭🇺
Iceland 🇮🇸
Ireland 🇮🇪
Italy 🇮🇹
Latvia 🇱🇻
Lithuania 🇱🇹
Luxembourg 🇱🇺
Madeira 🇵🇹
Malta 🇲🇹
Martinique 🇲🇶
Netherlands 🇳🇱
Norway 🇳🇴
Poland 🇵🇱
Portugal 🇵🇹
Réunion 🇷🇪
Romania 🇷🇴
Saint Barthélemy 🇧🇱
Saint Martin 🇲🇫
San Marino 🇸🇲
Slovakia 🇸🇰
Slovenia 🇸🇮
Spain 🇪🇸
Sweden 🇸🇪
Vatican City 🇻🇦
45 Roaming Destinations
12GB
Åland Islands 🇦🇽
Austria 🇦🇹
Azores 🇵🇹
Balearic Islands 🇪🇸
Belgium 🇧🇪
Bulgaria 🇧🇬
Canary Islands 🇮🇨
Comoros & Mayotte 🇾🇹
Croatia 🇭🇷
Cyprus 🇨🇾
Czech Republic 🇨🇿
Denmark 🇩🇰
Estonia 🇪🇪
Finland 🇫🇮
France 🇫🇷
French Guiana 🇬🇫
Germany 🇩🇪
Gibraltar 🇬🇮
Greece 🇬🇷
Guadeloupe 🇬🇵
Hungary 🇭🇺
Iceland 🇮🇸
Ireland 🇮🇪
Italy 🇮🇹
Latvia 🇱🇻
Lithuania 🇱🇹
Luxembourg 🇱🇺
Madeira 🇵🇹
Malta 🇲🇹
Martinique 🇲🇶
Netherlands 🇳🇱
Norway 🇳🇴
Poland 🇵🇱
Portugal 🇵🇹
Réunion 🇷🇪
Romania 🇷🇴
Saint Barthélemy 🇧🇱
Saint Martin 🇲🇫
San Marino 🇸🇲
Slovakia 🇸🇰
Slovenia 🇸🇮
Spain 🇪🇸
Sweden 🇸🇪
Vatican City 🇻🇦
45 Roaming Destinations
12GB
Åland Islands 🇦🇽
Austria 🇦🇹
Azores 🇵🇹
Balearic Islands 🇪🇸
Belgium 🇧🇪
Bulgaria 🇧🇬
Canary Islands 🇮🇨
Comoros & Mayotte 🇾🇹
Croatia 🇭🇷
Cyprus 🇨🇾
Czech Republic 🇨🇿
Denmark 🇩🇰
Estonia 🇪🇪
Finland 🇫🇮
France 🇫🇷
French Guiana 🇬🇫
Germany 🇩🇪
Gibraltar 🇬🇮
Greece 🇬🇷
Guadeloupe 🇬🇵
Hungary 🇭🇺
Iceland 🇮🇸
Ireland 🇮🇪
Italy 🇮🇹
Latvia 🇱🇻
Lithuania 🇱🇹
Luxembourg 🇱🇺
Madeira 🇵🇹
Malta 🇲🇹
Martinique 🇲🇶
Netherlands 🇳🇱
Norway 🇳🇴
Poland 🇵🇱
Portugal 🇵🇹
Réunion 🇷🇪
Romania 🇷🇴
Saint Barthélemy 🇧🇱
Saint Martin 🇲🇫
San Marino 🇸🇲
Slovakia 🇸🇰
Slovenia 🇸🇮
Spain 🇪🇸
Sweden 🇸🇪
Vatican City 🇻🇦
45 Roaming Destinations
12GB
Åland Islands 🇦🇽
Austria 🇦🇹
Azores 🇵🇹
Balearic Islands 🇪🇸
Belgium 🇧🇪
Bulgaria 🇧🇬
Canary Islands 🇮🇨
Comoros & Mayotte 🇾🇹
Croatia 🇭🇷
Cyprus 🇨🇾
Czech Republic 🇨🇿
Denmark 🇩🇰
Estonia 🇪🇪
Finland 🇫🇮
France 🇫🇷
French Guiana 🇬🇫
Germany 🇩🇪
Gibraltar 🇬🇮
Greece 🇬🇷
Guadeloupe 🇬🇵
Hungary 🇭🇺
Iceland 🇮🇸
Ireland 🇮🇪
Italy 🇮🇹
Latvia 🇱🇻
Lithuania 🇱🇹
Luxembourg 🇱🇺
Madeira 🇵🇹
Malta 🇲🇹
Martinique 🇲🇶
Netherlands 🇳🇱
Norway 🇳🇴
Poland 🇵🇱
Portugal 🇵🇹
Réunion 🇷🇪
Romania 🇷🇴
Saint Barthélemy 🇧🇱
Saint Martin 🇲🇫
San Marino 🇸🇲
Slovakia 🇸🇰
Slovenia 🇸🇮
Spain 🇪🇸
Sweden 🇸🇪
Vatican City 🇻🇦
45 Roaming Destinations
12GB
Åland Islands 🇦🇽
Austria 🇦🇹
Azores 🇵🇹
Balearic Islands 🇪🇸
Belgium 🇧🇪
Bulgaria 🇧🇬
Canary Islands 🇮🇨
Comoros & Mayotte 🇾🇹
Croatia 🇭🇷
Cyprus 🇨🇾
Czech Republic 🇨🇿
Denmark 🇩🇰
Estonia 🇪🇪
Finland 🇫🇮
France 🇫🇷
French Guiana 🇬🇫
Germany 🇩🇪
Gibraltar 🇬🇮
Greece 🇬🇷
Guadeloupe 🇬🇵
Hungary 🇭🇺
Iceland 🇮🇸
Ireland 🇮🇪
Italy 🇮🇹
Latvia 🇱🇻
Lithuania 🇱🇹
Luxembourg 🇱🇺
Madeira 🇵🇹
Malta 🇲🇹
Martinique 🇲🇶
Netherlands 🇳🇱
Norway 🇳🇴
Poland 🇵🇱
Portugal 🇵🇹
Réunion 🇷🇪
Romania 🇷🇴
Saint Barthélemy 🇧🇱
Saint Martin 🇲🇫
San Marino 🇸🇲
Slovakia 🇸🇰
Slovenia 🇸🇮
Spain 🇪🇸
Sweden 🇸🇪
Vatican City 🇻🇦
Smarty SIM Only Deals: Flexible, Affordable Plans with Great Data and Roaming
Looking for a SIM only deal that offers great value, no-nonsense plans, and reliable UK coverage? Smarty provides simple and affordable SIM only deals running on Three’s robust 4G and 5G network. With flexible plans, generous data allowances, and fair roaming, Smarty is perfect if you want no fuss and great savings.
Why Choose a Smarty SIM Only Deal?
Smarty is popular because of:
- Affordable Prices: Competitive plans with great data allowances for your budget.
- Flexible Plans: Rolling 30-day contracts mean you’re never locked in.
- Generous Data Offers: Plans often include unused data rollovers and extra data rewards.
- Fair Roaming: Use your data and calls in over 50 destinations with fair usage limits.
- No Credit Checks: Easy sign-up with no credit check required.
- 5G Network Access: Fast 5G speeds on Three’s network across the UK.
Compare Smarty SIM Only Plans
Smarty offers a range of flexible SIM only deals, from light plans with just enough data to unlimited plans for heavy users. All plans come with fair roaming options, making them ideal for both domestic and international use.
Frequently Asked Questions About Smarty SIM Only Deals
Are Smarty SIM only deals cheaper than phone contracts?
Yes, SIM only deals let you keep your current phone and pay less than bundled contracts with devices.
Can I keep my phone number when switching to Smarty?
Absolutely, request a PAC code from your current provider and provide it to Smarty to transfer your number.
Do I need an unlocked phone for Smarty?
Yes, your phone must be unlocked and compatible with Three’s network.
Does Smarty offer unlimited data?
Smarty offers some plans with unlimited data, great for users who stream, game, and browse heavily.
Can I use Smarty SIMs abroad?
Yes, Smarty offers roaming in many countries. Look for 
in deal listings to see which countries are included.
Are there no credit check SIM only plans with Smarty?
Yes, Smarty does not require a credit check to sign up. Look for 
on deal listings.
What contract lengths does Smarty offer?
Smarty only offers rolling 30-day contracts, so you can cancel anytime with no penalties.
Does Smarty support 5G?
Yes, Smarty supports 5G on compatible devices using Three’s network.
Does Smarty support Wi-Fi Calling and VoLTE?
Yes, both Wi-Fi Calling and VoLTE are supported to improve call quality.
How do I top up or manage my Smarty plan?
Manage your account easily via the Smarty app or website.
Are there any discounts for students or NHS workers?
Smarty occasionally offers special promotions. Check Olimit for the latest deals.
Can I use Smarty SIM for tethering or hotspot?
Yes, tethering is supported on Smarty SIM only plans.
Can I get an eSIM with Smarty?
Smarty does not support eSIM’s, hopefully soon they will implement eSIM into their deals.
How good is Smarty’s coverage and network speed?
Smarty runs on Three’s network, delivering solid 4G and expanding 5G coverage with competitive speeds across the UK.
How do Smarty plans compare to other providers?
Smarty offers excellent value with flexible rolling contracts and fair roaming, while providers like O2 or Three may have different perks or network strengths.
Other Networks
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