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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?

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Recommended
Micro SIM card

Triple SIM (Standard, Micro and Nano)

Vodafone
1.5GB Data Unlimited Minutes Unlimited Texts
£6.00 a month 12 month contract Vodafone Vodafone See Deal
Recommended
Micro SIM card

Triple SIM (Standard, Micro and Nano)

Three
8GB Data Unlimited Minutes Unlimited Texts
£9.00 a month 12 month contract Three Three See Deal
Epic Deal
Recommended
Micro SIM card

Triple SIM (Standard, Micro and Nano)

Three
Unlimited Data Unlimited Minutes Unlimited Texts
£10.00 a month 24 month contract Three Three See Deal
6 months half price
Micro SIM card

Triple SIM (Standard, Micro and Nano)

iD
250MB Data 150 Minutes Unlimited Texts
£4.00 a month 1 month contract iD iD See Deal
Data Rollover
Micro SIM card

Triple SIM (Standard, Micro and Nano)

iD
1GB Data 500 Minutes Unlimited Texts
£5.00 a month 1 month contract iD iD See Deal
Data Rollover
Micro SIM card

Triple SIM (Standard, Micro and Nano)

Smarty
500MB Data Unlimited Minutes Unlimited Texts
£5.00 a month 1 month contract Smarty Smarty See Deal
Micro SIM card

Triple SIM (Standard, Micro and Nano)

Sky Mobile
1GB Data Unlimited Minutes Unlimited Texts
£6.00 a month 12 month contract Sky Mobile Sky Mobile See Deal
Data Rollover
Micro SIM card

Triple SIM (Standard, Micro and Nano)

Sky Mobile
1GB Data Unlimited Minutes Unlimited Texts
£6.00 a month 12 month contract Sky Mobile Sky Mobile See Deal
Data Rollover
  • Overview

Overview

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 days 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 networks offer SIM Only deals?

All major networks in the UK offer SIM Only deals. Choose a network below to compare deals:

EE SIM Only

O2 SIM Only

Three SIM only

Vodafone SIM Only

BT Mobile SIM Only

iD Mobile SIM Only

Tesco Mobile SIM Only

Virgin Mobile SIM Only

Plusnet SIM Only

Smarty SIM Only

Voxi SIM Only  

Which SIM type 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, along with whether data roaming and tethering are included. For the answers to those questions, see below.

Tethering

Network

Allows tethering?

EE

Yes

Three

Yes

O2

Yes

Vodafone

Yes

BT Mobile

Yes

Tesco Mobile

Yes

iD Mobile

Yes

Virgin Mobile

Yes

Smarty

Yes

VOXI

Yes

GiffGaff

Yes

Plusnet Mobile

Yes

Roaming

Network

Includes free EU data roaming?

EE

Yes

Three

Yes

O2

Yes

Vodafone

Yes

BT

Yes

Tesco Mobile

Yes

iD Mobile

Yes

Virgin Mobile

Yes

Smarty

Yes

VOXI

Yes

GiffGaff

Yes

Plusnet Mobile

Yes

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 6 towns and cities

Three

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

99.8%

Launched in 15 towns and cities

O2

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

99%

Launching in London in August

Vodafone

The follow also use Vodafone's network: Voxi

99%

Launching in 4 cities in 2019

Which networks offer 5G SIM only plans?

Currently, both EE and Vodafone offer SIM Only plans with 5G in the UK. You can find them quickly and easily using our helpful filter above.

Who offers unlimited data SIMs?

Three, Smarty, Vodafone and GiffGaff currently offer unlimited data SIM cards. However, there are various restrictions that apply.

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