Tom's Guide to the Best SIM Only Deals

1. Three Mobile - Unlimited Everything
2. VOXI - Unlimited Social Media + 6GB data
3. ID-Mobile - 10GB data + Unlimited Calls

So, you want the best SIM deal? Switching from a fixed-term monthly contract with a handset to SIM-only can be a great way to save money. There are many SIM only deals with unlimited data and cheap monthly costs.

Are you looking for the cheapest plan, unlimited everything, or a good all-rounder?

SIM cards do not have to be expensive. There are some fantastic deals available with unlimited data, phone calls and text messages.

Great Deals in August 2019

Vodafone is selling 8GB of data with unlimited calls and texts for just £10 a month for 12 months. This is a bonus of 5GB free data compared to normal.

GiffGaff is selling 40GB of data with unlimited calls and texts for £20 a month. This is double the amount of data compared to normal. You can cancel the contract at any time.

Virgin Mobile is selling 25GB of data with 5,000 minutes and unlimited texts for £15 per month for 12 months. This is a discount of £10 per month compared to normal.

O2 is selling 100GB of data with unlimited calls and texts for £30 a month for 12 months. This is a bonus of 40GB free data compared to normal, and includes a free gift as well such as earphones. This deal ends on August 7th.

What's the cheapest plan?

ID-Mobile offers the absolute cheapest plan at just £6 per month.

• 30-day rolling contract (cancel anytime)
• 1GB of data
• Unlimited minutes
• See deal here

But you can double your data to 2GB for just £1 more: £7 per month.

If you simply want the cheapest plan possible, ID-Mobile is the place to go. There are other plans available too: See all the deals available at ID-Mobile

Where can I get unlimited everything?

Three Mobile has the best unlimited everything plan, with 50% off for the first 6 months, only £10 per month.

• Unlimited data
• Unlimited calls
• Unlimited texts
• See deal here

The contract length is 24 months. After 6 months at £10, it then goes to £20 per month.

If you want a shorter contract, 12 months, then you can get a contract with unlimited data for £20 a month too.

What's the best all-rounder SIM card?

VOXI is a new brand of Vodafone. It is the best SIM only deal if you want a good all-rounder, from only £10 per month.

• Unlimited Social Media (Facebook, Instagram, WhatsApp etc.)
• 6GB Data (for other stuff)
• Unlimited Calls
• Unlimited Texts
• No Contract, Cancel Anytime
• See deal here

Where can I see more SIM Only deals?

• Vodafone
• Virgin Mobile
• O2
• Sky Mobile
• giffgaff
• Tesco Mobile

SIM-only contracts are becoming more popular as people are preferring to buy a smartphone outright and then just have a cheap SIM.

This prevents you being over-charged once you have paid off your phone. What does that mean? Normally, when you buy a monthly contract, a large portion of that is to pay for the handset itself. However, once your contract finishes if you forget to cancel it then you continue to pay the same expensive monthly fee despite the fact that you've already finished paying for the handset.

Can I use a SIM only contract abroad?

Yes. All UK networks will allow you to use your phone abroad to make and receive calls. If you're in the European Union (EU), then you will continue to be charged your normal rate. That means free roaming in the EU. With VOXI's video plan where for £7 you can get all-you-can-eat video streaming data, this could be brilliant for a holiday. But always check individual terms and conditions with your phone network before heading off.