Data Only SIM Deals
- Compare data only SIM deals and save
- Best deals on all networks, including EE, O2, Three and Vodafone
- Prices start at just £5 a month
- Get internet for your iPad, tablet or Mobile WiFi dongle
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A data only SIM card is designed for use in tablets and mobile Wi-Fi devices which don't make or receive calls. They come with a bundled data allowance, but don't include minutes or texts.
A data only SIM is the ideal choice if you have a tablet (with a SIM card slot), mobile broadband device or other device that you want to get online when away from Wi-Fi, but which you don’t need to call or text from, because, as the name suggests, a data only SIM comes with a data allowance but no minutes or texts.
All plans come with 4G and many additionally include 5G, so you can enjoy fast downloads and rapid internet browsing. You can also share internet with any other device that supports Wi-Fi over a personal hotspot (also known as tethering).
All the major UK mobile networks offer data only SIM deals, including EE, Three, O2 and Vodafone, as well as BT Mobile and Lycamobile. They all come with 4G included at no extra cost, and many also come with 5G – look for the 5G symbol in our deals to find these, or tick the ‘only show 5G deals’ box.
At the time of writing, the cheapest deal available in the UK is £5 per month on Lycamobile. That gets you 500MB of data on a 30-day plan. There’s also a £7.50 a month deal on Three. That gets you 1GB of data per month and is on a 12-month contract.
You’ll probably need a Nano SIM, which is the smallest type of SIM card and is used in the majority of devices from the last few years. However, it’s possible that you’ll need a Micro SIM or possibly even a full-size standard SIM card.
Check the documentation for your device to find out for sure, or search for the make and model online.
However, most networks send a trio or multi SIM which includes all of the possible sizes, so you don’t need to check which you need before placing an order.
Every UK network has comprehensive 3G coverage, while 4G coverage is now widely available in most places as well.
5G is also available on all of these networks except for Lycamobile at the time of writing – though EE and BT Mobile don’t currently offer 5G with data only plans. 5G coverage on all networks is patchy, but rapidly improving.
All UK networks allow you to roam across the EU at no extra cost at the time of writing, however there are fair usage limits and EE will start charging from 2022, and some other networks may follow suit. In any case, Three and Vodafone stand out by allowing Data Only SIM customers to roam in select worldwide locations.
Yes, you can put a data only SIM in a phone, but be aware you won't have any allowances to make calls or texts. Any calls or texts you do make may be charged at full standard out of allowance rates.
Yes, as a general rule a SIM designed for smartphones should also work with tablets and mobile broadband devices. However, be aware that you’ll be paying for texts and minutes too, so the pricing might be less desirable. There are also sometimes restrictions on this. For example, O2 doesn’t allow you to use voice SIMs in mains-powered devices.
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