Unlimited data SIM: what are they and the top 4 contracts on the market to help you decide

In comparison to a mobile SIM, a data SIM provides only mobile data. This means that you are not able to make standard voice calls and SMS but internet-based messaging (WhatsApp, Facebook messenger or Viber) are suitable alternatives. Data SIM cards offer data plans for various destinations around the world to allow you to stay connected without the expensive roaming fees which often incur. This means you can scroll through social media and stream at your own peace of mind without having the worry of ever being caught short.

However, you should not buy the first unlimited data SIM you see; there are factors to keep in mind when considering what data SIM to buy including: length of contract, value for money, 4G and 5G compatibility and if the package offers any extras.

Below are the top 4 unlimited data SIMs to buy:

1. iD mobile (£16/month for 24 months)

iD mobile’s offer undercuts all of the competition with its price but as expected, it does not come with the extra features which are included in the other packages. It is conjoined onto Three’s network which is reputable for its 4G downloading speeds which allows for reliable streaming. Three’s 5G covers more of the UK than any other mobile network.

This is a great unlimited data SIM for an extremely good price

2. EE (£35/month for 24 months)

This is the most expensive of the 5 choices however this is due to it coming with the UK’s fastest 4G and 5G download speed which allows for reliably quick access to the internet

3. Three (£21/month for 24 months)

This deal comes closely behind EE for its 4G and 5G download speeds and offers a personal hotspot so you can share your unlimited data with your laptop or tablet allowing a wider convenience for access. In addition, the SIM offers a Go Roam Around the World service which allows you to use your data in 71 countries for a small, fixed fee.

4. Vodaphone (£23/month for 24 months)

Vodaphone has the second-widest 5G coverage which allows consistent streaming. This being said, it lags considerably behind other networks for its downloading speed which is disappointing given its price point.

More expensive bundles offer a higher downloading speed with additional bonuses such as: YouTube premium, amazon prime and Spotify for the length of your contract