Last chance! The best ever £20 a month unlimited SIM-only plan is about to end

Three has revived its Black Friday SIM-only deal

Three Unlimited SIM-only 4G Data Cheap Deal

When it comes to phenomenal SIM-only deals, we still haven't seen better than the unlimited SIM-only deal that Three unleashed on Black Friday last year.

Fortunately, Three has decided resurrect its blockbuster SIM-only deal until Monday February 18, 2019. So, if you've already paid off your smartphone and don't feel like upgrading to a newer model, then this new deal is an amazing chance to upgrade your monthly mobile plan to get more data, texts and minutes at a lower cost.

For a very reasonable £20 a month, Three is dishing out an unlimited data allowance, texts and calls. No catches. No 4G speed throttling when you hit a certain amount of 4G data. It does what it says on the tin.

Aside from the mind-boggling amount of 4G data up for grabs here, you'll also benefit from all the usual perks of a Three contract, including the ability to use your unlimited data in more than 70 countries around the world for no extra charge. These include Spain, France, United States, Australia, Brazil, and Hong Kong.

And in case you're worried that unlimited data isn't enough for your streaming needs, Three customers are able to use Snapchat, Netflix, Deezer and Apple Music without any of the data counting towards your monthly allowance.

Unlimited Three SIM-Only | 12 month Contract | All-You-Can-Eat 4G Data | Unlimited Minutes, Texts | £20 a month
It's back! The blockbuster SIM-only deal that debuted on Black Friday last year has returned for a limited time. No network or third-part retailer is even close to matching this unlimited data Three SIM only deal. You'll never have to worry about breaching your data limit again. Perfect!
Deal ends on Monday, February 18, 2019View Deal

Aside from the unlimited mobile data, minutes and text messages, there are a number of other perks of signing up to a SIM-only deal with Three. As a Three customer, you'll get access to exclusive offers and freebies with Three's rewards app, dubbed Wuntu. You'll also get early bag drop and boarding with Easyjet flights.

If you'd rather not sign-up with Three, then check out the best SIM-only deals to see what else is available from other UK mobile carriers.