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January Sale SIM only deals: best offers on each network

SIM card with a sale tag

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

We guide you through the best SIM only offers in each UK mobile network's January Sale for every data requirement, budget and provider. Last updated: 5th January 2023

In our January Sale SIM only deal guide

Most networks have some kind of winter sale live

Montage of previous January Sale banners

We'd say the post-Christmas period is the second best time in the year to get a bargain on a new SIM only plan (after Black Friday). And loads of networks have their January Sale offers live.

Flame See our best-rated deals here, where we find the best offers per data amount

Flame See offers by mobile network here, if there's a particular provider you want to join

We hope you enjoy our guide and find a great deal.

Our best-rated offers

January Sale SIM only offers

We've broken down the best deals into categories:

Smartphone and internet symbolby data allowance

SIM card with sale ribbon Unlimited data offers

It's between iD Mobile and SMARTY

Three Black Friday unlimited data deal

See full deal

at SMARTY.co.uk
(opens in new window)

It's the two cheap providers on Three's 5G network dominating this category. We've got a hidden deal here from SMARTY:

Or iD have a 3 months half price offer in their sale but with a much longer commitment:

You can claim a £100 pre-paid Mastercard with O2's unlimited data deal here:

This is a decent price from Vodafone's Big Winter Sale and ends on 26th January:

If a network's not here, it's because they don't do unlimited data:

Useful link: Compare all unlimited data plans here

Skip to other deals

Smartphone and internet symbolby data allowance

SIM card with sale ribbon Deals with 100GB or more

Plenty of competition on different networks

Talkmobile 100GB deal

See full offer

at talkmobile.co.uk
(opens in new window)

We think the best deal for this category is Talkmobile's 100GB deal below on Vodafone's full 5G network. It's a hidden deal and beat their own Winter Saver offers:

iD Mobile's 3 months half price sale makes this deal competitive too on the Three network:

This is worth a mention on O2 too:

Here are each UK network's best SIM only plans with 100GB or more data. If their unlimited plan is still cheaper, we'll include it here:

Useful link: Compare all plans

Skip to other deals

Smartphone and internet symbolby data allowance

SIM card with sale ribbon Offers with 30GB+ data

Plenty of decent plans on sale

Three 30GB for £8 banner

Get this deal

at three.co.uk
(opens in new window)

Once again, Talkmobile are leading on price with their hidden 1-month deal here:

But Three can get pretty close on this longer plan:

This is a great value way to get on Vodafone, with some handy cashback you don't have to claim:

These are the best current SIM only plans on each network with 30GB or more data. If they've got a plan with more than 30GB that's still cheaper, we'll include it here:

Useful link: Compare all plans

Skip to other deals

Smartphone and internet symbolby data allowance

SIM card with sale ribbon Offers with 10GB+ data

£7 or so is the going rate

Virgin Mobile 12GB for £7 banner

See full offer

at virginmedia.com
(opens in new window)

You can basically take your pick for which network to join, for more or less the same price. Talkmobile on Vodafone's 5G lead the pack by 5p:

On Three's 5G network, you've got SMARTY here:

To get on O2, have a look at Virgin Mobile:

Or to get on EE's 5G network, we think this 1pMobile deal is excellent:

These are the best SIM only offers available from each network with 10GB or more data. If there's a cheaper deal that comes with more, we'll show that instead:

Useful link: Compare all plans

Skip to other deals

Smartphone and internet symbolby data allowance

SIM card with sale ribbon Offers with 5GB+ data

Some seriously low rates

Virgin Mobile 6GB for £6 banner

See full offer

at virginmedia.com
(opens in new window)

It's now possible to spend as little as £6 to get more than 5GB of data. Talkmobile on Vodafone's 5G once again win on price by 5p:

Or for an O2-based network, try Virgin Mobile:

Or to get on Three's 5G network, iD Mobile have got an excellent price here:

These are the best SIM only offers available from each network with 10GB or more data. If there's a cheaper deal that comes with more, we'll show that instead:

Useful link: Compare all plans

Skip to other deals

Smartphone and internet symbolby data allowance

January Sale offers by network

Choose a mobile network

Three logo
EE logo
giffgaff logo
ID logo
O2 logo
SMARTY logo
Virgin Mobile logo
Vodafone logo
VOXI logo

Three: hidden offers beat their sale offers

Three January Sale

6 months half priceSee regular offers

at Three.co.uk
(opens in new window)

What Three are billing as their Winter Sale offers have actually been live for a while. You'll get 6 months half price on these 24-month plans.

While that's well and good, we can beat the average monthly cost of those deals with Three's hidden plans below, on shorter contracts:

Useful link: Our Three review

EE: just a couple of January sale offers

EE Winter Sale banner

3 or 6 months half priceSee their sale

at EE.co.uk
(opens in new window)

EE's Winter Sale is live, with half price offers for 3 and 6 months on their 24-month SIMs. The best deal is their unlimited plan here:

If you're in the market for a smaller data plan, 1pMobile on the full EE 5G network have a very good 1-month deal here:

Useful links: Our EE review | Our guide to Flex Plans

giffgaff: no January Sale but improved goodybags

giffgaff no annual price rise

There's always their free joining creditGet £5 free credit

at giffgaff.com
(opens in new window)

giffgaff never really go in for seasonal offers on their SIM only plans but they have just improved what you get with a whole load of regular plans. Plus they won't raise prices this year.

Here are the standout deals on giffgaff:

Useful link: Our giffgaff review

iD Mobile: 3 months half price sale offers

iD Mobile 3 months half price offers

12/24-month contractsSee the offers

at idmobile.co.uk
(opens in new window)

If you're feeling the effects of an expensive Christmas, iD Mobile's Winter Sale could help you out. There's 3 months half price on loads of plans.

Here are the best value:

Useful link: Our iD Mobile review

O2: some decent offers including 6 months half price

O2 Mastercard SIM offer

Claim up to £100 pre-paid MastercardSee all offers

at O2.co.uk
(opens in new window)

O2 have probably got their best January Sale offer for years. You can claim a pre-paid Mastercard loaded with up to £100 on it. You do have to claim though, within 90 days (they text you how).

Claim a £100 on their unlimited deal:

Or one with £50 on this:

Useful link: Our O2 review

Sky Mobile: 25% off all their SIMs

Sky Mobile double data sale offer

12 month contractSee all plans

at Sky.com
(opens in new window)

SMARTY: loads of great offers

SMARTY SIM card £8 price

The main two offersSee all plans

at SMARTY.co.uk
(opens in new window)

Talkmobile: Winter Sale offers beaten by hidden ones

Talkmobile SIM cards

Get this deal

at talkmobile.co.uk
(opens in new window)

Tesco Mobile: Clubcard Price SIMs

Tesco Mobile Xmas SIM only offers

Price for Clubcard holdersSee the offers

at tescomobile.com
(opens in new window)

There's a bit of Sale branding on Tesco Mobile but really they are just continuing with their standard offer, which sees improved pricing on certain plans if you have a Clubcard:

Useful link: Our Tesco Mobile review

Virgin Mobile: Winter Sale now live

Virgin Mobile Winter Sale SIMs

Get this deal

at virginmedia.com
(opens in new window)

At any time of year, Virgin are one of the best mobile networks for low prices but there's some extra competitive pricing in their Winter Sale including:

Useful link: Our Virgin Mobile review

Vodafone: Big Winter Sale and Carphone cashback

Vodafone Big Winter

Full speed unlimited 5G dataGet this deal

at Vodafone.co.uk
(opens in new window)

You've got until 26th January to benefit from Vodafone's Big Winter Sale, which sees their full-speed unlimited data SIM reduced to £25:

Or for smaller data amounts, it's worth looking at joining via Carphone Warehouse as they'll send you free cashback on the plans below without having to claim anything:

Useful link: Our Vodafone review

VOXI: double data and money off unlimited data

VOXI data boost offer banner

Unlimited social media dataGet this deal

at VOXI.co.uk
(opens in new window)

Compare all current SIM only deals

Networks

Providers:

1p Mobile logo
Three logo
ASDA logo
BT Mobile logo
Coop Mobile logo
EE logo
giffgaff logo
Honest logo
ID logo
IQ logo
Lebara logo
Lycamobile logo
O2 logo
Plusnet logo
SMARTY logo
Sky logo
Talkmobile logo
Tesco logo
Virgin Mobile logo
Vodafone logo
VOXI logo

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