Question 1

What is the cheapest 1 month SIM only deal in the UK?

Accepted Answer

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Question 2

Can I keep my phone number on a 1 month SIM only plan?

Accepted Answer

{"root":{"type":"root","version":1,"format":"","indent":0,"direction":"ltr","children":[{"type":"paragraph","version":1,"format":"","indent":0,"direction":"ltr","textFormat":0,"textStyle":"","children":[{"type":"text","version":1,"text":"Yes. Text PAC to 65075 for free from your current number. Your PAC code arrives by text immediately. Give it to your new network when you sign up and your number transfers over — usually within one working day.","format":0,"detail":0,"mode":"normal","style":""}]}]}}

Question 3

Will a 1 month SIM work in my phone?

Accepted Answer

{"root":{"type":"root","version":1,"format":"","indent":0,"direction":"ltr","children":[{"type":"paragraph","version":1,"format":"","indent":0,"direction":"ltr","textFormat":0,"textStyle":"","children":[{"type":"text","version":1,"text":"Yes, as long as your phone is unlocked. Since December 2021, Ofcom rules mean all new phones sold in the UK must be sold unlocked. If you have an older handset that is still locked to a network, contact your current provider — they must unlock it for free.","format":0,"detail":0,"mode":"normal","style":""}]}]}}

Question 4

Is there a difference between a 1 month SIM and Pay As You Go?

Accepted Answer

{"root":{"type":"root","version":1,"format":"","indent":0,"direction":"ltr","children":[{"type":"paragraph","version":1,"format":"","indent":0,"direction":"ltr","textFormat":0,"textStyle":"","children":[{"type":"text","version":1,"text":"Yes. A 1 month rolling SIM is a pay monthly plan — you get a fixed allowance of data, calls, and texts each month and pay a set fee. Pay As You Go means you top up credit as and when you need it, with no monthly commitment. Rolling SIMs generally offer better value per GB than PAYG.","format":0,"detail":0,"mode":"normal","style":""}]}]}}

Question 5

Can I upgrade from a 1 month SIM to a longer deal?

Accepted Answer

{"root":{"type":"root","version":1,"format":"","indent":0,"direction":"ltr","children":[{"type":"paragraph","version":1,"format":"","indent":0,"direction":"ltr","textFormat":0,"textStyle":"","children":[{"type":"text","version":1,"text":"Yes. At any point you can upgrade to a 12 or 24 month plan with your current network or switch to a different provider entirely. Because there are no exit fees on a rolling plan, moving is always straightforward.","format":0,"detail":0,"mode":"normal","style":""}]}]}}

Question 6

Do 1 month SIM plans include 5G?

Accepted Answer

{"root":{"type":"root","version":1,"format":"","indent":0,"direction":"ltr","children":[{"type":"paragraph","version":1,"format":"","indent":0,"direction":"ltr","textFormat":0,"textStyle":"","children":[{"type":"text","version":1,"text":"Most do. The four main UK networks — O2, Vodafone, Three, and EE — now include 5G access as standard on all pay monthly SIM plans. Smaller networks like SMARTY and iD Mobile also offer 5G on many rolling plans. You need a 5G-compatible handset to use it. Compare 1 Month SIM Only Deals Now — It Takes 2 Minutes Switch brings together every 1 month SIM only uk deal in one place. No hidden rankings, no bias toward any single network — just clear, up-to-date comparisons so you can pick the plan that works for you and move on with your day. Keep your phone. Keep your number. Cancel any time. Compare SIM Only Deals  |  See All Mobile Deals  |  Expert Help: 01926 942125 INTERNAL LINKING MAP (for developer / editor use) Anchor Text Destination URL Section SIM only deals /sim-only-deals/ Intro 1 month SIM only uk /mobile/1-month-sim-only/ Throughout (primary KW) compare mobile phone deals /mobile-phones/ H1 section pay as you go SIM /mobile/payg-sim/ Credit check section EU roaming SIM deals /mobile/sim-only-deals/eu-roaming/ Roaming section eSIM deals /mobile/esim-deals/ eSIM section 12 month SIM deals /mobile/12-month-sim-only/ Comparison table unlimited data SIM /mobile/unlimited-data-sim/ Data guide section broadband deals /broadband-and-tv/ Footer / related 30-day rolling SIM, no contract SIM UK, rolling SIM plan, monthly SIM deal, flexible SIM contract, pay monthly SIM no phone, cancel anytime SIM, SIM card only deal, best SIM deal UK 2026, cheap SIM only UK, 5G SIM only, eSIM rolling contract, keep my number SIM switch, PAC code, EU roaming SIM, unlimited data SIM only, data rollover SIM, MVNO UK, SMARTY, iD Mobile, Lebara, Lyca Mobile, light credit check SIM, SIM deal for existing phone","format":0,"detail":0,"mode":"normal","style":""}]}]}}

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