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Hidden Three offers: SIM only deals and phone contracts at better prices

Three logo and secret spy iconVisit

The retailers featured on this page may compensate us when our readers follow links to their websites and make a purchase. More

We uncover loads of hidden deals on Three that aren't advertised on the main part of their website but you still buy direct from them. SIM Sherpa is your trusty guide. Last updated: 13th January 2021.

What are these secret deals?

Hidden offers you still buy directly from Three

Screenshot of Three's online checkout

Buy directly from

On this page, we've put together a list of the current special offers you can get from Three that aren't advertised on the main part of their website. Each deal links you directly to Three's checkout instead.

Three send these "secret deals" to comparison websites like us to promote only to our readers. They're usually either better pricing for the same products. Or wholly unique plans.

They do this so they can appeal to the types of customers who are savvy deal finders, without giving away cheaper prices to everyone and reducing their profits. It's a little cynical but mobile networks are businesses.

The hidden offers vary all the time. Sometimes there may be none running at all. We update this page as and when we find out offers change but we can't guarantee availabilty. If we know an offer end date, we'll tell you.

Choose a product: SIM only plans | Phone contracts

Hidden SIM only deals

There are a few hidden SIM only deals on Three

Three SIM cards

More regular deals on Three's websiteSee full range

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This is an absolutely excellent deal. It's half the price of 12GB on Three's website and gives you 50% more data than the old 8GB for £8 hidden plan it replaced. We don't know when it ends, so we wouldn't hang around:

If you need a bit more data, this will save you £36 a year vs the main website price:

This 100GB isn't advertised at all on Three's website. There's only 30GB and unlimited. It's a nice middle-ground if you need masses of data without it being unlimited:

Or there's £24 a year to be saved with unlimited data on this plan:

Or for a shorter committment, save £2 a month vs the full price with this deal:

Useful link: Three's full range of regular SIM only deals

Hidden phone contract deals

Three's phone range

We've included hidden offers in our comparison of Three's contract phones below

Phone options


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Samsung logo
Alcatel logo
CAT logo
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Emporia logo
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OS box
Features box


Upfront: (Any upfront cost)

Monthly: (Any monthly cost)


Length: (6 - 36 months only)

Data: (Any)



Three logo
BT Mobile logo
EE logo
giffgaff logo
ID logo
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Sky logo
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