flame Compare Deals and save hundreds of pounds Sim Only Deals Phone Deals

SIM Only Deals

SIM Only Deals

Compare 4G SIM Only plans and find the best deal for you.

  • All UK mobile networks, including EE, O2, Three and Vodafone
  • Unlimited data plans available
  • Shorter contract lengths and keep your number

Looking for a data only SIM?

Filter Deals
Clear all filters

Recommended
Micro SIM card

Triple SIM (Standard, Micro and Nano)

Three
4GB Data Unlimited Minutes Unlimited Texts
£6.00 a month 12 month contract Three Three See Deal
Black Friday Deal
Recommended
Micro SIM card

Triple SIM (Standard, Micro and Nano)

Three
12GB Data Unlimited Minutes Unlimited Texts
£8.00 a month 12 month contract Three Three See Deal
Black Friday Deal
Recommended
Micro SIM card

Triple SIM (Standard, Micro and Nano)

iD Mobile
12GB Data Unlimited Minutes Unlimited Texts
£8.00 a month 1 month contract iD Mobile iD Mobile See Deal
Black Friday Deal Data Rollover
Recommended
Micro SIM card

Triple SIM (Standard, Micro and Nano)

Smarty
50GB Data Unlimited Minutes Unlimited Texts
£12.00 a month 1 month contract Smarty Smarty See Deal
Black Friday Deal
Recommended
Micro SIM card

Triple SIM (Standard, Micro and Nano)

iD Mobile
50GB Data Unlimited Minutes Unlimited Texts
£13.00 a month 1 month contract iD Mobile iD Mobile See Deal
Black Friday Deal Data Rollover
Recommended
Micro SIM card

Triple SIM (Standard, Micro and Nano)

Virgin Mobile
36GB Data Unlimited Minutes Unlimited Texts
£13.00 a month 12 month contract Virgin Mobile Virgin Mobile See Deal
Black Friday Deal Data Rollover
Recommended
Micro SIM card

Triple SIM (Standard, Micro and Nano)

Smarty
Unlimited Data Unlimited Minutes Unlimited Texts
£15.00 a month 1 month contract Smarty Smarty See Deal
Black Friday Deal
Recommended
Micro SIM card

Triple SIM (Standard, Micro and Nano)

Three
Unlimited Data Unlimited Minutes Unlimited Texts
£16.00 a month 12 month contract Three Three See Deal
Black Friday Deal
  • Overview

Overview

Frequently Asked Questions

 

Which networks offer SIM Only deals?

Why choose a SIM Only contract?

SIM Only contracts have a number of advantages. For one thing, they’re cheaper than getting a contract that includes a new phone. They’re also almost always shorter term, generally coming in at either 30 day rolling contracts or 12 months, so you have more freedom and flexibility to change your tariff.

SIM Only contracts are also ideal if you’re happy to keep your current phone – or want to buy a new one outright rather than paying for it monthly.

Which SIM size do I need?

Depending on what phone you have you might need a standard SIM (mostly used by older handsets), a micro SIM (used by many handsets made in the last few years), or a nano SIM (used by many of the newest handsets).

To be sure, you’ll have to check your handset, but the good news is that many networks supply a trio or combi SIM, which includes all three sizes. And if you ever change phone and need a different size SIM card you can either request one from your network or use an adaptor.

Which network should I choose?

Although you’re not always tied in for long on a SIM Only contract, it’s still preferable to choose the right network first time round, and beyond costs you may want to consider their coverage

Coverage

All of the UK networks have widespread 4G, 3G and 2G coverage. 5G has now launched on a couple of networks with the others due to launch before the end of 2019.

Network

4G population coverage

5G coverage

EE

The following also use EE's network: BT Mobile, Plusnet and Virgin Mobile

over 99%

Launched in May 2019

Three

The following also use Three's network: Smarty and iD Mobile

99.8%

Launched in February 2020

O2

The following also use O2's network: GiffGaff,  Tesco Mobile and Sky Mobile

99%

Launched in October 2019

Vodafone

The follow also use Vodafone's network: Voxi

99%

Launched in July 2019

Which networks offer 5G SIM only plans?

Currently,  EE, O2, Vodafone and Voxi offer 5G SIM Only plans in the UK, while Three offer 5G Ready plans at no extra cost. You can find them quickly and easily using our helpful filter above.

Can I get a SIM Only plan with no credit check?

Yes, a number of networks offer SIM only plans with no credit check, which are great for those who don't want a credit check conducted or have bad credit. Use the "contract length" filter and select "No credit checks", or visit this page.

Who offers unlimited data SIMs?

EE, GiffGaff, iD Mobile, O2, Three, Smarty, Vodafone, Virgin Media and VOXI currently offer unlimited data SIM cards. However, there are various restrictions that apply.

Sign up for our newsletter.