1. What Are SIM-Only Deals?
A SIM-only deal is a mobile plan that gives you a SIM card with data, calls, and texts—without the phone. Since you’re only paying for the service and not a new device, these deals tend to be much cheaper than standard contracts. It’s an ideal option for those who already own a phone or prefer buying their devices upfront.

2. Why Choose a SIM-Only Contract?
Flexibility is the biggest draw of SIM-only contracts. Whether you’re after a short-term rolling plan or a longer 12-month deal, SIM-only gives you the freedom to switch carriers or plans as your needs change. Plus, if you’re someone who likes to upgrade your phone whenever you want, this option allows you to keep your plan and swap phones whenever you feel like it.

3. Best SIM-Only Deals
Vodafone is offering a stellar deal with 100GB of data for just £12 per month on a 12-month contract. For those seeking unlimited data, Three has an incredible unlimited everything plan for just £18 per month. Meanwhile, O2 offers a balance between the two, with 50GB of data for £10 monthly.

4. Who Benefits from SIM-Only Deals?
If you already own a perfectly good phone, why pay extra? SIM-only deals are perfect for those who want to lower their monthly bills. Students, frequent travelers, and budget-conscious consumers often find SIM-only contracts the most practical choice.

5. Short-Term vs. Long-Term SIM Contracts
SIM-only contracts offer both short and long-term options. You can choose a 30-day rolling contract if you want maximum flexibility or a 12-24 month deal if you want a lower monthly cost. Short-term contracts are great for those who need temporary service, while longer-term contracts often come with better discounts.

6. How to Switch to a SIM-Only Plan
Switching to a SIM-only deal is simple. If you’re staying with the same provider, it usually takes just a phone call or an online form. Moving to a new provider? You can keep your number with a PAC code (Porting Authorisation Code), which is a breeze to obtain from your current provider.