Best Cheap SIM Only Deals

It's clear the SIM only deals are great for saving money. But which SIM deals offer you the best deal for a low cost? We've compiled our list of the top 5 cheap deals we can find and explained what makes them worth considering.

iD Mobile 1GB SIM - £5 per month

iD Mobile have excelled at providing cheap SIM only contracts and they currently have the UK's cheapest SIM deal costing just £3.99. However, with just 500MB of data every month we think the £5 deal is much more useful for customers who use the're data lightly and want to make the most of the 500 minutes that are available.

If you want to up your mobile minutes you can get the same SIM deal plus unlimited minutes for just £1 extra

id logo
iD Mobile SIM Only
1GB Data
1 Month SIM
£5
a month
1GB
data
500
minutes
Unlimited
texts

Roll Over Unused Data

Free EU Roaming

  • Roll over unused data each month
  • Simple and flexible SIM only deal - Change or cancel wheneveryou like at no extra cost
  • Powered by Three

Smarty 2GB SIM - £7.50 per month

Smarty is a great new SIM network run by Three Mobile and dedicated to providing simple, low-cost deals which let customers roll over their unused data and are currently giving 3 months for the price of one. Smarty offers an X small (1GB), Medium (4GB) and Large (8GB) plan but the best cheap SIM deal is their 2GB plan for just £7.50

If you get your SIM in January you'll only pay a total of £7.50 for the first 3 months so don't miss out!

smarty logo
Smarty SIM Only
2GB Data
1 Month SIM
£7.5
a month
2GB
data
Unlimited
minutes
Unlimited
texts
No Credit Check

Get Back Unused Credit

Rolling Contract

No Credit Check Required

  • Get a discount on unused data - £1.25 off your next bill for each unused GB of data
  • Refer a friend and you both get a free month
  • Use in Europe for no extra cost
  • Powered by Three
  • Simple and flexible SIM only deal - Change or cancel wheneveryou like at no extra cost

Three 4GB SIM - £9 per month (12 Month)

When you're looking for a low-cost SIM, it's important to take into account not just the amount you pay every month but what you actually get for your money. Three's 4GB SIM is a good example of getting huge bang for your buck.

With Unlimited minutes, tethering and other Three mobile perks such as their App and exclusive offers, this SIM deal really makes the most of every pound spent.

three logo
Three SIM Only
4GB Data
12 Month Contract
£9
a month
4GB
data
Unlimited
minutes
Unlimited
texts

Free 4GB Wifi Hotspot

Free Roaming In 71 Countries

  • Connect other devices to your phone hotspot and use your data allowance to get online
  • Access exclusive offers and treats - Only for Three customers
  • Go Roam Around the World in 71 destinations, at no extra cost - More Details
  • One month SIM also available

Voxi 6GB SIM - £10 per month

Vodafone have also come to the UK market with a simple and affordable SIM only brand - Voxi. Voxi offer customers fantastic add-ons such as endless social media use, great cancel-anytime flexibility and just like Smarty they don't credit check customers.

Voxi recently increased their data allowances giving customers a choice between 6GB (£10 p/m), 15GB (£15 p/m) and 45GB (£20 p/m) but we've picked their low-cost 6GB plan as the best for those on a budget.

voxi logo
Voxi SIM Only
6GB Data
1 Month SIM
£10
a month
6GB
data
Unlimited
minutes
Unlimited
texts
Offer Ends 31st March

Endless Social Media

Rolling Contract

No Credit Check Required

  • Endless social media use - Unlimited data on Snapchat, Instagram, WhatsApp, Facebook, Twitter, Pinterest, Viber and Facebook Messenger
  • Refer a friend and you both get a £10 Amazon voucher
  • Use in Europe for no extra cost
  • Powered by Vodafone/li>
  • Simple and flexible SIM only deal - Change or cancel wheneveryou like at no extra cost

iD Mobile 500MB SIM - £3.99 per month

We obviously couldn't have a list of great cheap SIM deals without including the UK's cheapest. The £3.99, 500MB SIM from iD Mobile gives customers the bare minimum of allowances with just 150 minutes but if you really do want the cheapest SIM only contract then this is the one for you

It's also worth mentioning that because this is a 1 month SIM you can always change it if you end up needing more data - iD Mobile charge customers £0.1024 per extra MB or £102.40 per GB for Out of plan usage. You can purchase add-ons however.


View all cheap SIM only deals