Black Friday SIM only deals: 2025 offers still available

Even though Black Friday has been and gone, most of the offers released are still available to buy. We’ve picked out the best of the best here.

But if you’re in a hurry, check each of the dropdowns below depending on what you need. We’ve listed each network’s most competitive offer for each of the categories (or you can browse by network here):

Best offers on EE, O2, Three and Vodafone

Best unlimited data deals

Best 100GB+ data deals

Best 50GB+ data deals

Best 20GB+ data deals

Best deals under £15

Best deals under £10

Best deals under £7

In the rest of this guide, we use our experience tracking offers all year, to tell you which Black Friday deals are genuine and which are just a bit of marketing. Choose where to go next below.

It’s O2 with the surprise best offer of any major network this Black Friday. We’ve got an exclusive deal here for new customers, which gives you an epic 100GB for just £10. Order by 4th December:

Unlimited minutes + Unlimited texts +  100GB data (5G) = £10 a month (12‑month contract)
See full deal

🛈 Increased to: £12.50 on April 1 2026

We’re also big fans of this from the UK’s fastest 5G network Three. The plan even includes EU roaming (their normal plans don’t) and it’s an exclusive low price for 30GB data (triple the UK average usage):

Unlimited minutes + Unlimited texts +  30GB data (5G) = £8 a month (12‑month contract)
See full deal

🛈 Increased to: £9.90 on April 1 2026

More great offers on main networks

Meanwhile, if you want to join Vodafone, we’d recommend doing it via Carphone Warehouse. You join the full network in the normal way but they’ll also pay you cashback automatically, on an already-cheaper deal:

Unlimited minutes + Unlimited texts +  70GB data (5G) = £12 a month (12‑month contract)
£30 auto cashback by cheque
See full deal

🛈 Increased to: £14.50 on April 1 2026

EE have the weakest of the deals with this 25GB for £18 Black Friday SIM that looks positively expensive vs the rest of the major networks.

We’re big fans of Talkmobile generally. They use the reliable Vodafone 4G/5G network, have WiFi calling and even customer service you can call. That makes their 30GB deal here our favourite for genuine value:

Unlimited minutes + Unlimited texts + 15GB 30GB data (5G) = £6.95 a month (1‑month contract)
See full deal

🛈 No annual price rises

For massive data users, iD Mobile on the Three network are winning out for us, with this exclusive deal that was around even before Black Friday. Superfast 5G, EU roaming and no commitment:

Unlimited minutes + Unlimited texts + 60GB 108GB data (5G) = £10 £9 a month (1‑month contract)
See full deal

🛈 No annual price rises

To get on the EE network, Lyca Mobile have a brilliantly priced 24-month deal here. It’s a little longer to commit to but if you sign up and you’re not totally happy, you have 14 days to change your mind:

Unlimited minutes + Unlimited texts +  50GB data (5G) = £8 a month (24‑month contract)
See full deal

🛈 No annual price rises

Or for no commitments on EE’s network and extras like WiFi calling and UK-based customer service on the phone, this spusu deal has been popular all year. It’s not a Black Friday deal but it is still a bargain:

Unlimited minutes + Unlimited texts +  20GB data (5G) = £7.90 £6.90 a month (1‑month plan, no contract)
See full deal

🛈 No price rises in 2026

As expected, 1pMobile haven’t launched any Black Friday specific offers. But we wouldn’t let that dampen your spirits too much. We still think they offer the closest experience to being on EE direct.

That makes their already cheap deals excellent value anyway in the scheme of things. We think this is their clear standout deal (but check the dropdown for more):

Unlimited minutes + Unlimited texts + 25GB 50GB data (5G) = £10 a month (1‑month plan, no contract)
See full deal

🛈 No annual price rises

1pMobile’s best current SIM offers

If 1pMobile do do anything for Black Friday, we think it will be very last minute and only for a short period. They don’t have the budget to throw deep discounts at people for a long time.

Historically, Three were one of the main players on SIM only at Black Friday. This year, the only specific offer they’ve they’ve launched is unlimited data for £20 on a 24-month contract. Our exclusive is better though:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) = £28 £18 a month (12‑month contract)
See full deal

🛈 Increased to: £20.30 on April 1 2026

This massive 80GB deal on the UK’s fastest 5G network is impressive and is exclusively available for our readers (it’s not advertised direct):

Unlimited minutes + Unlimited texts +  80GB data (5G) = £10 a month (12‑month contract)
See full deal

🛈 Increased to: £11.90 on April 1 2026

We also like this smaller 30GB deal. That’s 3x what the average UK user will get through and it even comes with EU roaming and 6 months of free Paramount+ streaming service:

Unlimited minutes + Unlimited texts +  30GB data (5G) = £8 a month (12‑month contract)
See full deal

🛈 Increased to: £9.90 on April 1 2026

Our exclusive Three SIM only deals

EE don’t really bother competing for price at Black Friday or ever. So it’s no surprise to see their SIM only deals aren’t particularly overwhelming (they’re mainly focused on phones).

If we had to pick this is probably the best. It’s worth looking at smaller providers that use EE’s network as an alternative if this doesn’t float your boat:

Unlimited minutes + Unlimited texts +  25GB data (5G) = £18 a month (24‑month contract)
See full deal

🛈

Best offers on EE-based networks

A generally quiet Black Friday for EE on SIM only.

We said it in our prediction: giffgaff don’t really dabble in SIM only offers for Black Friday. They just focus on their phone contracts. That said, they have got one key standout offer live until 4th December.

This deal gives you genuinely unlimited data (it’s not like their old ‘Always On’ plan) and was priced at £25 for many years. So the £10 discount adding up to £180 is real:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) = £25 £15 a month (18‑month contract)
See full deal

🛈 No mid-contract price rises

giffgaff’s best current offers

Other than that, it’s their standard mix of SIMs as predicted.

We think you can ignore any of the Black Friday Event offers at idmobile.co.uk. We can beat them all with our range of exclusive deals iD have sent us, on just short 1-month plans (instead of 12 or 24 months).

The best is this 20GB plan. It’s been boosted with 5GB vs prior to Black Friday, so it’s a genuine deal, with enough data to cover double the UK’s average usage:

Unlimited minutes + Unlimited texts + 8GB 20GB data (5G) = £6 a month (1‑month contract)
See full deal

🛈 No annual price rises

At the much bigger end of things, this isn’t even a Black Friday deal but it’s been selling very well:

Unlimited minutes + Unlimited texts + 60GB 108GB data (5G) = £10 £9 a month (1‑month contract)
See full deal

🛈 No annual price rises

For everything in between, check the dropdown here:

Our exclusive iD Mobile SIM only deals

Once again, like most years, iD Mobile have thrown the kitchen sink at Black Friday.

There’s no doubting Lebara as the king of bargain basement prices over Black Friday. They’ve knocked 70% off your first 3 months, on these plans, which you’re free to leave at any point!

Unlimited minutes + Unlimited texts +  15GB data (5G) = £7 £2.10 a month for 3 months, then £7 (1‑month plan, no contract)
See full deal

🛈 No price rises in 2025

Unlimited minutes + Unlimited texts +  30GB data (5G) = £8 £2.40 a month for 3 months, then £8 (1‑month plan, no contract)
See full deal

🛈 No price rises in 2025

Unlimited minutes + Unlimited texts +  50GB data (5G) = £9 £2.70 a month for 3 months, then £9 (1‑month plan, no contract)
See full deal

🛈 No price rises in 2025

The deals have been genuinely reduced from their full price. And they’re only around until 4th December. So they’re true Black Friday offers!

Lyca’s Black Friday offers are live until 8th December. For short-term low prices, they’re offering 3 months half price on all these 1-month plans. This is a genuine new offer (previously two months).

This has proven the most popular so far but check under the dropdown for the full range:

Unlimited minutes + Unlimited texts +  5GB data (5G) = £5 £2.50 a month for 3 months, then £5 (1‑month plan, no contract)
See full deal

🛈 No annual price rises

All 3 month half price offers on Lyca

But if you’re willing to commit to a contract, you can get a much longer-term low price with their pay monthly Black Friday deals. Unlike their short term offers, you won’t need to switch again quickly to keep a low price:

Unlimited minutes + Unlimited texts + 10GB 12GB data (5G) = £6 a month (12‑month contract)
See full deal

🛈 No annual price rises

Lyca’s other contract offers

It’s a superb set of deals and a great, cheap way to get on the EE network this November and December.

This is our first year tracking Mozillion at Black Friday. They’re mainly interested in phone deals at this time of year but they have got one nice-enough little offer on SIM only:

Unlimited minutes + Unlimited texts +  100GB data (5G) = £6.50 a month for 1 month, then £13 (1‑month plan, no contract)
See full deal

🛈 No annual price rises

It’s pretty decent but the discount is short-lived (just one month). And the ongoing rate of £13 did actually used to be £12 just a month ago.

All Mozillion’s deals

We were hoping for a few more discounts from Mozillion. They have a habit of trimming £1 or £2 off their deals every now and then, before putting them back up. They’ve not done this for Black Friday though.

O2 have sent us some great Black Friday deals to share with our readers. But you’ll need to be quick: they only last until 4th December. Our favourite is this 100GB plan, which is startling value for a major network:

Unlimited minutes + Unlimited texts +  100GB data (5G) = £10 a month (12‑month contract)
See full deal

🛈 Increased to: £12.50 on April 1 2026

If you don’t need that much, you can also save a few pounds by taking this cheaper deal with less data. It’s also only for new customers and lasts until 4th December:

Unlimited minutes + Unlimited texts +  40GB data (5G) = £7.50 a month (12‑month contract)
See full deal

🛈 Increased to: £10.00 on April 1 2026

Even more exclusive O2 deals

On the main part of O2’s website, their hero Black Friday offer is a very tidy unlimited data for £20 deal, which has genuinely been in the mid-£20 range for the last years. This ends 10th December:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) = £24 £20 a month (24‑month contract)
See full deal

🛈 Increased to: £26.50 on April 1 2026.
Increased to: £29.00 on April 1 2027

This is definitely O2’s best Black Friday we’ve witnessed, so worth investing now. We think these prices will go straight back up.

Despite launching some new SIM offers badged up as Black Friday, we have plenty of exclusive deals which are better value. Particularly this 10GB deal for just £6 a month:

Unlimited minutes + Unlimited texts + 3GB 10GB data (5G) = £10 £6 a month (12‑month contract)
See full deal

🛈 Data plan price may increase during new minimum term

Only cheapy cheap networks are beating that at the moment. It’s available until 17th December. Sky’s other exclusive 50GB for £11 offer is also good value for an O2-based network:

Unlimited minutes + Unlimited texts +  50GB data (5G) = £20 £11 a month (12‑month contract)
See full deal

🛈 Data plan price may increase during new minimum term

No last minute deals from Sky this year. The above ones have been available most the month. Still, this is the best value we’ve seen from them all year.

SMARTY have sent us a range of exclusive plans for Black Friday to share with our readers, which all last until 1st December. Check under the dropdown here:

All our exclusive SMARTY offers

But we actually think their best deal is the main one advertised to everyone on their website. It gives you five times more data than the average person in the UK uses for just £8:

Unlimited minutes + Unlimited texts + 16GB 50GB data (5G) = £8 a month (1‑month plan, no contract)
See full deal

🛈 No annual price rises

Or for massive data users, this whopping 250GB plan has been popular recently too, even though it’s not a Black Friday specific deal:

Unlimited minutes + Unlimited texts + 200GB 250GB data (5G) = £17 £15 a month (1‑month plan, no contract)
See full deal

🛈 No annual price rises

In the run up to Black Friday, spusu indicated to us they wouldn’t be launching any short term offers. But their main range of exclusive SIM only plans is more than enough to beat most networks on price.

There’s pretty much a market-leading plan for every data usage amount on spusu, check under dropdown here for the full list.

Best current offers on spusu

If you’re stuck for which to take, the 20GB deal below is proving our most popular. It gives you twice what the average UK user gets through at a market leading price on the EE network:

Unlimited minutes + Unlimited texts +  20GB data (5G) = £7.90 £6.90 a month (1‑month plan, no contract)
See full deal

🛈 No price rises in 2026

Black Friday started on 21st November on Talkmobile’s website, with this 3 months half price offer on a 12-month contract averaging out to £10.45 a month over the year:

Unlimited minutes + Unlimited texts +  120GB data (5G) = £5.98 a month for 3 months, then £11.95 (12‑month contract)
See full deal

🛈 No annual price rises

But we actually have a range of exclusive 1-month plans that beat all the others on the main part of their website. These two deals are proving the most popular:

Unlimited minutes + Unlimited texts + 30GB 50GB data (5G) = £7.95 a month (1‑month contract)
See full deal

🛈 No annual price rises

Unlimited minutes + Unlimited texts + 50GB 80GB data (5G) = £9.95 £8.95 a month (1‑month contract)
See full deal

🛈 No annual price rises

But there’s plenty more under here too:

Our full range of Talkmobile exclusives

We’re big fans of Talkmobile in general. Their deals are cheap, they use Vodafone and their telephone based customer service has always been decent when we’ve used them.

Tesco are another network, who normally publish their Black Friday offers early. This year they did it in October! They’ve got a couple of cut-price offers for Clubcard holders:

Unlimited minutes + Unlimited texts +  12GB data (5G) = £10 £9 a month (24‑month contract)
See full deal

🛈 No annual price rise for Clubcard holders

Unlimited minutes + Unlimited texts +  60GB data (5G) = £15 £12 a month (24‑month contract)
See full deal

🛈 No annual price rise for Clubcard holders

And then recently they’ve added this very well priced unlimited data SIM too:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) = £18 a month (24‑month contract)
See full deal

🛈 No annual price rise for Clubcard holders

We think the best value on Vodafone this Black Friday is being offered by retailers Carphone Warehouse. They have better prices on Vodafone’s full speed Red plans and they’ll give you automatic cashback:

Unlimited minutes + Unlimited texts +  30GB data (5G) = £10 a month (12‑month contract)
£20 auto cashback by cheque
See full deal

🛈 Increased to: £12.50 on April 1 2026

Unlimited minutes + Unlimited texts +  70GB data (5G) = £12 a month (12‑month contract)
£30 auto cashback by cheque
See full deal

🛈 Increased to: £14.50 on April 1 2026

Unlimited minutes + Unlimited texts +  Unlimited data (5G) = £24 a month (24‑month contract)
£100 auto cashback by cheque
See full deal

🛈 Increased to: £26.50 on April 1 2026.
Increased to: £29.00 on April 1 2027

Best Vodafone SIM only offers now

The amounts of cashback have all had £2 or so added to them, specifically for Black Friday.

As usual, VOXI have waited until Black Friday to launch a range of huge data offers. The headline deal comes with unlimited video, music and social media streaming. Order by 1st December:

Unlimited minutes + Unlimited texts + 25GB 100GB data (5G) = £12 a month (1‑month plan, no contract)
See full deal

🛈 VOXI reserve the right to increase the cost of this plan annually with one month’s notice

If you don’t need that much data, we can also save you a couple of pounds a month with our exclusive deal here:

Unlimited minutes + Unlimited texts + 20GB 80GB data (5G) = £10 a month (1‑month plan, no contract)
See full deal

🛈 VOXI reserve the right to increase the cost of this plan annually with one month’s notice

If you need even more data, there are some other absolutely massive data amounts available under the dropdown below:

VOXI’s current SIM only deals

We think the leading value over Black Friday for your £10 is from O2. You can get an astonishing 100GB for your tenner when you order by 4th December, including EU roaming:

Unlimited minutes + Unlimited texts +  100GB data (5G) = £10 a month (12‑month contract)
See full deal

🛈 Increased to: £12.50 on April 1 2026

This iD Mobile exclusive deal using the Three network has been around a while. But their on-site Black Friday deals still can’t beat its value and flexibility, on just a 1-month contract with EU roaming:

Unlimited minutes + Unlimited texts + 60GB 108GB data (5G) = £10 £9 a month (1‑month contract)
See full deal

🛈 No annual price rises

This is an absolutely massive exclusive offer from Talkmobile on the Vodafone network. It’s not a Black Friday specific deal (which are now live on Talkmobile) but it doesn’t need to be. It’s already exceptional value:

Unlimited minutes + Unlimited texts + 50GB 100GB data (5G) = £9.95 a month (1‑month contract)
See full deal

🛈 No annual price rises

Or to get on the EE network, this is only a 1-month contract on spusu and it gives you a discount down to £9.90 for your first year:

Unlimited minutes + Unlimited texts +  60GB data (5G) = £12.90 £9.90 a month for 12 months, then £12.90 (1‑month plan, no contract)
See full deal

🛈 No price rises in 2026

Each network’s best SIM under £10

For just an outrageous low price, we really like Lebara’s deal here on the Vodafone network. You now get 4 months for just £2.10 a month. And it’s a 1-month deal, so you can leave whenever you like!

Unlimited minutes + Unlimited texts +  15GB data (5G) = £7 £2.10 a month for 1 month, then £7 (1‑month plan, no contract)
See full deal

🛈 No annual price rises

All offers under £5

We also think it’s hard to fault this exclusive plan on spusu, which uses the full speed EE network:

Unlimited minutes + Unlimited texts +  20GB data (5G) = £7.90 £6.90 a month (1‑month plan, no contract)
See full deal

🛈 No price rises in 2026

This is another brilliant low price main network offer on O2. It gives you full speeds, EU roaming and all normal O2 features. You will need to be a new customer to O2 though:

Unlimited minutes + Unlimited texts +  40GB data (5G) = £7.50 a month (12‑month contract)
See full deal

🛈 Increased to: £10.00 on April 1 2026

Meanwhile for a low cost deal on the full Vodafone network, it’s Talkmobile that win out at the moment:

Unlimited minutes + Unlimited texts + 15GB 30GB data (5G) = £6.95 a month (1‑month contract)
See full deal

🛈 No annual price rises

There’s plenty of competition for unlimited data. For out-and-out main network value, there’s this on the UK’s fastest 5G network from Three:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) = £28 £18 a month (12‑month contract)
See full deal

🛈 Increased to: £19.50 on April 1 2026

To get on the EE network, Lyca Mobile’s unlimited data offer here is record breaking value and only available until 8th December:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) = £18 £15.50 a month (24‑month contract)
See full deal

🛈 No annual price rises

On the O2 network giffgaff have got this flat-priced £15 unlimited data SIM on sale until 4th December (it’s not one of their Always On plans either, which had capped speeds):

Unlimited minutes + Unlimited texts +  Unlimited data (5G) = £25 £15 a month (18‑month contract)
See full deal

🛈 No mid-contract price rises

And last but not least on the Vodafone network, their sub-brand Talkmobile have this ultra cheap unlimited everything SIM with no long-term commitments:

Unlimited minutes + Unlimited texts +  Unlimited data (5G) = £16.95 a month (1‑month contract)
See full deal

🛈 No annual price rises

Each network’s best unlimited data deal