WorldSIM UK Travel SIM Card

This prepaid 4G SIM is a travel SIM and a UK SIM combined. It gives you cheap international calls from the UK and abroad.  What's even better is that it's free! 

• Cheap UK and international calling rates - from 1p per min!
• Reduce international roaming charges by up to 85% in 200 countries
• Free incoming calls when you travel (in over 95 countries)
• Add data bundles once your sim arrives. Use as a data sim in iPads and tablets
• 4G SIM works in any unlocked handset and compatible with all SIM sizes
• Roam on your existing number using our Virtual Numbers service
• Comes with free UK and USA mobile number

Availability: In Stock In stock

Select the amount of credit you would like. Up to 15% discount available now. The more you add the cheaper the price!

  • £20Credit

  • £30Credit

  • £50Credit

  • £100Credit

These are our UK national tariffs

Mobile & Landline




International SMS
...but we offer cheap international calls & roaming

See how little it costs...

Calling from the UK to...


I am in...

Calling to...

& 0.11






& 0.11


  • Data will be charged in an increment of 1Mb
  • Receiving from or calling to a Premium, non-geographic or a satellite number would be charged a higher rate
  • Calls will be billed in an increment of 2 minutes
  • An additional charge of 0.11 will apply for receiving calls on a US/Virtual number



Get 3 SIM cards in one with our 4G UK Travel SIM...

Cheap Calls, data and SMS in the UK
If you compare our UK call, SMS and data rates to any other prepaid UK SIM companies you will see how much you can save.

Cheap International Calls
If you make international calls you will be pleased to know that our international calling rates start at just 1p per minute so you can talk for longer.  If you are visiting from outside the UK this means you can call home as much as you like with our cheap international call rates.

Free International Roaming
As well as giving you lower prepaid rates in the UK, your WorldSIM UK Travel SIM card will also give you free international roaming when you travel. Receive calls free in 95 countries and get low cost worldwide data, calls and SMS when you travel in 200 countries.

WorldSIM Pay as you go UK Travel SIM card


Reduce your Pay as you go spend

Whether you are looking for a cheaper pay as you go rates or you are visiting the UK and need a SIM, WorldSIM can save you substantially on your calls, data and SMS costs as our rates are much less than the leading networks. The SIM has no monthly top up requirement; just use the SIM once a year to keep it active.

Cheap international calls

Make cheap international calls when you travel and keep in contact with friends and family overseas from just 1p a minute, our international call rates are very competitive!

3 SIM sizes

We offer standard, micro and nano SIM sizes. You will need an unlocked handset in order for our SIM to work.  Our SIM will give you 4G speeds wherever it is available.

Free international roaming

On top of being a UK SIM card and giving you cheap international calls, our pay as you go SIM will give you free international roaming in 95 countries. See our full tariffs.

UK and USA number on one SIM

Your WorldSIM UK Travel SIM card will come with a UK (+44) number as well as a USA (+1) number on the same SIM.

Add multiple numbers to your SIM

If you would like to add more phone numbers to your WorldSIM UK SIM card you can add unlimited numbers from over 50 countries with our Virtual Numbers service.

Online account

In your online account you can view your itemised billing, top up, set automatic top ups and get help online.

24 hour customer service

We are always available to take your call if you need assistance as our customer service department is open 24 hours a day, every day.

Much more than just a UK SIM card

Cheap international calls

With international calls from 1 per minute you can talk for longer, more often. Get low cost rates around the world from one global SIM card. Staying in contact with friends, family and business contacts abroad doesn’t have to cost the earth!

Free international roaming

With big network operators you could pay £1.30 just to receive a call while abroad. Our travel SIM enables you to receive calls for free in 95 countries. In countries where roaming isn’t free it’s greatly reduced and costs from as little as 20 per min.

Low cost UK calls

If you are a pay as you go user with one of the big network providers, it’s likely that you are paying 25p per minute, or more, for UK calls. Our global SIM gives you UK calls at just 7p per minute. We have simplified our prices so you pay one price for all your UK calls and text messages.

Turn your data roaming on

Post your holiday photos and browse the web when you travel without having to waste time searching for free Wi-Fi; our data roaming rates are super low so you can stay connected for less every time you travel.

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What our users say about this product

Hear about people's experience with this product, the SIM and our service

Rating stars

Great SIM! Perfect for a longer trip abroad!

As a first time user, I am very satisfied. There's a bit of a learning curve if you've never used a SIM before, which was my situation, but it doesn't take long to figure things out. And the rates are superb! It's so nice not to have to worry about excessive roaming charges on your "home" carrier.

Will - ProductReview.com

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Rating stars

My WorldSIM experience was just what I was hoping for

Activating the service was immediate – just turned on my phone and I was connected. As I traveled through six countries, I always had efficient service to call a local restaurant or to call home thousands of miles away.

James G - ProductReview.com

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Rating stars

Perfect for travelers!

I used WorldSIM several times during my trips in Europe and America without any problems. The phone changed the networks automatically and I never lost the signal. Very good coverage on those areas.

Gustavo - ProductReview.com

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Rating stars

Essential travel companion

I travel to the US a few times a year and have been using a WorldSim card for a while. I have just upgraded to their new card and am very pleased. The rates are unbeatable and the process of moving my credit and number over went smoothly.

Jenny - ProductReview.com

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Rating stars

This product and service is Amazing! Highly recommend

I purchased the World SIM a few months back and since then I have used it in various countries with great satisfaction. The pricing structure is very competitive and service is highly reliable. If you travel to various countries and need a great world product then this SIM is the right move.

Tom - ProductReview.com

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