Three SIM only deal delivers unlimited data for just £12 this Christmas

Get the unlimited data plan for half price in the Three Christmas sale

Three SIM only deal, Three Christmas sale
(Image credit: Three)

December is an expensive time of year, whether you’re frantically shopping for Christmas presents or having to replace old tech and appliances. If you’ve recently got a new smartphone or you’re trying to save money on your phone bill (opens in new tab), choosing a SIM only plan is not only cost effective, but they come with powerful speeds and a huge amount of data.

Lucky for you, the Three Christmas sale is currently on, with half price SIM only deals on its most popular plans. A reliable well known network provider, Three has some of the best SIM only deals (opens in new tab) on the market, and in its Christmas sale, you can get the unlimited data SIM only plan for just £12 a month.

View the unlimited data SIM only plan at Three (opens in new tab)

Shop the Three Christmas sale (opens in new tab)

The unlimited data SIM only deal from Three offers unlimited data, texts and minutes for just £12 a month. This 24 month advanced plan has no upfront fees, comes with roaming and personal hotspots, and can be 5G ready at no extra cost.

For this SIM only plan from Three, the first 6 months of your contract is half price at £12. Once you hit the seventh month, you pay £24 for the remainder of your contract length. So, if you buy the unlimited data SIM only plan from Three now, you won’t pay full price until June/July 2023.

At Three, the unlimited, 250GB and 30GB are all discounted in the Three Christmas sale, so you can get big data for a fraction of the price. To view the unlimited data SIM only deal at Three, click the link above or keep reading for more cheap SIM only deals.

Unlimited data SIM only plan: £12 a month at Three (opens in new tab)

Unlimited data SIM only plan: £12 a month at Three (opens in new tab)
Get Three’s unlimited data SIM only plan for just £12 in the Three Christmas sale. Now at half price for 6 months, this SIM only deal offers unlimited data, texts and minutes, plus many extra features, including roaming, 5G and Three+ rewards. If you order by the 16th December, your Three SIM will arrive in time for Christmas.

Looking for cheap SIM only deals from a different provider? Then take a look at Smarty, who’s currently offering its 200GB data plan for just £14 a month (opens in new tab). Powered by Three’s reliable network, Smarty SIM only plans have huge data allowance with unlimited calls and texts, no speed caps and no upfront costs. With Smarty, you can cancel your contract at any time for no extra charge and in response to the cost of living crisis, new and existing customers won’t face any annual price rises when they sign up for a Smarty SIM.

For even more SIM only deals, have a scroll through our deals widget below and find offers from a range of retailers suited to your budget.

Bethan Girdler-Maslen
Acting Wellness Editor & Deals Writer

As T3's resident Shopping Expert and Deals Writer, Beth covers deals, discount codes, how to save money and seasonal holidays, including Black Friday, Cyber Monday, Amazon Prime Day, Boxing Day and Easter sales. Alongside her primary focus of deals, Beth is currently Acting Wellness Editor, covering all things sleep, yoga, relaxation and general wellbeing.


Having always been passionate about writing, she’s written for websites, newspapers and magazines on a variety of topics, from jewellery and culture, to food and telecoms. You can find her work across numerous sites, including Wedding Ideas Magazine, Health & Wellbeing, The Bristol Post, Fashion & Style Directory and more. In her spare time, Beth enjoys running, reading, baking and attempting DIY craft projects that will probably end in disaster!