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 🇳🇴
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