Unlimited data SIM Only deals

Our unlimited data SIM deals give you all the data you’ll ever need and all the benefits of being with Three. Choose from our huge range of mobile data plans. Plus, you can keep your current number.

24 month SIM
Unlimited data

What's included:

  • Unlimited minutes and texts
  • 5G Ready at no extra cost
  • Personal Hotspot

12 month SIM
Unlimited data

What's included:

  • Unlimited minutes and texts
  • 5G Ready at no extra cost
  • Personal Hotspot

1month SIM
Unlimited data

What's included:

  • Unlimited minutes and texts
  • 5G Ready at no extra cost
  • Personal Hotspot

Included in every unlimited phone and SIM Only plan

Three+ Rewards

Exclusive offers from brands you love with our Three+ rewards app.

Truly Unlimited

Unlimited data, minutes and texts. No data caps, speed limits, or fair usage policy.

5G Ready

All our SIMs are 5G Ready at no extra cost.

Personal Hotspot

Use your phone as a personal hotspot and share your unlimited data with other devices.

Unlimited data phone deals

Choose the latest tech and go unlimited, with our Pay Monthly phone plans.

Samsung Galaxy S23 Ultra

Samsung Galaxy A53 5G

Apple iPhone 14

Superfast Broadband with no landline

Introducing Broadband without the waiting. Set it up yourself in seconds and enjoy incredibly fast streaming, downloading, and uploading on the UK’s Fastest 5G Network*.

Unlimited data tablet plans

Work, play and relax with our range of immersive tablets.

Unlimited data-only SIMs

From 1GB to Unlimited data, there’s a 5G SIM for everyone.

Have you tried 5G yet?

Discover dazzling next-generation speeds. Game in real-time. Download in seconds. Stream without buffering. And so much more.

Frequently asked questions

Unlimited data means you can get online without worrying about how much data you use. So, you can stream, chat, download, share, and game, without thinking about the cost of data. If you’ve got an Unlimited data plan, we give you all the data you’ll ever need with no speed caps and no fair usage policy.

Our unlimited data plans are the best because the data is truly unlimited, so you never need to worry about your next bill. There are no speed caps, no data caps, and no hidden limits when you’re using our unlimited data in the UK. You can go unlimited with an unlimited data SIM, or with our unlimited data phone plans.

With Go Roam you can use your data in 71 destinations around the world, at no extra cost. The usage policy can vary slightly, so make sure you check out our Go Roam information before you travel.

The cost of your unlimited data plan will vary, depending on whether you want unlimited data SIM Only, broadband, or a phone deal. If you choose Pay Monthly, you can select how long the contract lasts - you can even try us out with a no commitment, 1-month SIM plan.

If you regularly go over your plan allowance or need to top up, it’s worth getting an unlimited data plan. Even if you don’t, it’s great to have the freedom to use the internet, game, stream, and play as much as you like, without worrying about the next bill.

Yes, if you’ve got unlimited data included in your plan you can use your phone as a personal hotspot. It’s called ‘tethering’ and it means you can connect other devices to your phone and use the phone plan data to get online. It’s perfect on long car journeys, if other people in the car need to get online on iPads or other devices. Or whenever you’re away and can’t find a Wi-Fi hotspot for another device.

Yes, it’s perfect for watching Netflix – and other online streaming services. You can stream/watch as much as you like, without worrying about your bill.

You can choose an unlimited data option with all our Pay Monthly plans. So, unlimited data is available on SIM Onlyphone contractstablet and laptop contractsMobile Broadband, or Home Broadband. Just make sure you select the unlimited data option when you choose your plan. You can also get an unlimited Data Pack with our Pay As You Go SIM.

Yes, you can get Unlimited data on an Unlimited data plan with our 4G MiFi. It’s a portable Wi-Fi hotspot that fits in your pocket and lets you connect up to 10 Wi-Fi enabled devices at once.

Yes. If you’ve got an Unlimited data plan, you can use your unlimited data allowance as a personal hotspot and connect other devices when you don’t have access to Wi-Fi.