Unlimited Data SIM
From Three Mobile

three logo
Unlimited Data
24 Month Contract
Unlimited
minutes
Unlimited
texts
£26.00
per month
Exclusive Price
Great Low-Cost Unlimited Data
Check Three Coverage
At Your Postcode
Guide: How to transfer
your number by text

No Data Caps Or Throttling

5G Ready

Switch to Three and get £100 cashback

  • Connect other devices to your phone hotspot and use your data allowance to get online
  • Access exclusive offers and treats - Only for Three customers

Network Quick Guide

three logo
Three SIM Only
Unlimited Data
24 Month Contract
£26.00
a month
Unlimited
data
Unlimited
minutes
Unlimited
texts
Exclusive Price
Great Low-Cost Unlimited Data
More Info
Check Coverage
At Your Postcode

No Data Caps Or Throttling

5G Ready

Switch to Three and get £100 cashback

  • Connect other devices to your phone hotspot and use your data allowance to get online
  • Access exclusive offers and treats - Only for Three customers
three logo
Three SIM Only
Unlimited Data
12 Month Contract
£23.00
a month
Unlimited
data
Unlimited
minutes
Unlimited
texts
Great Low-Cost Unlimited Data
5G Ready Data
More Info
Check Coverage
At Your Postcode

No Data Caps Or Throttling

5G Ready

Use popular apps without using your data.

  • Connect other devices to your phone hotspot and use your data allowance to get online
  • Access exclusive offers and treats - Only for Three customers
three logo
Three SIM Only
Unlimited Data
1 Month SIM
£31.00
a month
Unlimited
data
Unlimited
minutes
Unlimited
texts
Cheap & Flexible Unlimited Data
Change Your Contract Anytime
More Info
Check Coverage
At Your Postcode

No Data Caps Or Throttling

Rolling Contract

  • Flexible 1 month plan - You can choose to cancel after one month or carry on using it.

What Is A SIM Only Contract?

A SIM only contract is a stand-alone mobile phone contract with a package of texts, call minutes and mobile data.

With a SIM deal you only pay for the package every month, not the phone.

How does a SIM contract work?

When you usually take out a mobile phone contract your payment covers two things: the usage of texts, minutes and data and the handset you're using.

Mobile phone networks are essentially "leasing" the handset to you for a monthly fee. At the end of your contract (usually 12 to 24 months) they hope that you've paid the full cost of the phone. The SIM is just the microchip the phone uses to access the network.

A SIM only contract is just a SIM card, this allows you to choose the phone so you're only paying for the part of the contract that covers the network usage and not the more expensive handset.

I'm at the end of my phone contract. What can I do?

Once you reach the end of your mobile phone contract you have a few options:

  • Get a new contract and trade-in/sell your old phone
  • Keep the handset and get a SIM contract. Compare SIM Deals here
  • Buy a new handset outright and get a SIM

Mobile handsets are becoming increasingly expensive. That's why many customers keep the handset they paid good money for and find an affordable SIM deal that suits their needs - whether that's more data, a lower cost every month or for other network perks such as unlimited streaming or social media use.



woman holding a mobile phone

How do I keep my number

If you move to a new network you can keep your old number by taking just a few simple steps.

Firstly, you'll need to ask for a PAC code from your current network - Your PAC code is provided for free and will be made up of three letters and six numbers.

You can request a PAC code by phone or email and there is sometimes a form on your networks website to request it.

Once you have your PAC code you can give it to your new network who will transfer the number to your new contract.

Is there a credit check for SIM only contracts?

There is a credit check for most SIM contracts. If you want a 12 month contract there will certainly be a credit check but for one-month rolling contracts there are some networks who do not credit check - Compare no credit check SIM only deals here

Whilst your credit is being checked it's important to know that for one-month SIMS the check is less stringent.

There are plenty of great, affordable SIM options even if you fail a credit check and many pay as you go deals have offers that make them comparable to a contract (so long as you keep them topped up with credit)

Which SIM network should I choose?

There are lots of options when choosing a network, most customers stay with a well-known networks such as EE, O2, Three or Vodafone but there are plenty of good deals to be had when you compare them to newer, smaller networks such as Smarty, Voxi or giffgaff.

Many small networks in the UK use the infrastructure of the larger networks to provide their service so things like coverage are the same - in which case it's good to compare factors such as data amounts and network perks.

SIM Only Guides

Best Mobile Network For SIM Only Data

We compare the numbers to see who the best mobile network is to get the best value data - See how the SIm networks stack up with our full guide. 


25/06/2019

25% Off Smarty's Unlimited SIM Plan

Smarty are well-known for having very low-cost SIM only plans - Their latest Unlimited data SIM offer is their best yet. 


24/06/2019

Who Are 1-Month SIM Deals For?

Choosing the right type of SIM contract is tricky. Here's why you might want a 1-month or 30-day SIM deal. 


14/06/2019