Best Black Friday SIM only deals

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100GB of 5G data
1 month contract
Unltd texts
Unltd minutes
£12.00/mth monthly cost
  • EU roaming included
  • Unrestricted tethering in the UK
  • Free delivery
EXCLUSIVE
50GB of 5G data
12 month contract
Unltd texts
Unltd minutes
£12.00/mth monthly cost

(Prices may change during contract) Price could rise by CPI + 3.9% in April

  • Claim £20 Amazon voucher
  • EU roaming included
  • Free delivery
Unltd 5G data
18 month contract
Unltd texts
Unltd minutes
£25.00/mth monthly cost
  • Speed restrictions apply after 40GB of data use
  • Fair usage policy applies
  • Free delivery
25GB of 5G data
24 month contract
Unltd texts
Unltd minutes
£0.00/mth Months 1-3
£8.00/mth monthly cost

(Prices may change during contract) Price could rise by CPI + 3.9% in April

Avg monthly cost
£7.00/mth
  • Free delivery
EXCLUSIVE
16GB of 5G data
1 month contract
Unltd texts
Unltd minutes
£4.00/mth Months 1-3
£8.00/mth monthly cost
Avg monthly cost
£7.00/mth
  • EU roaming included
  • Unrestricted tethering in the UK
  • Free delivery
EXCLUSIVE
80GB of 5G data
12 month contract
Unltd texts
Unltd minutes
£5.00/mth Months 1-3
£10.00/mth monthly cost
Avg monthly cost
£8.75/mth
  • No annual price rise
  • First 3 months half price
  • Free delivery
1GB of 5G data
1 month contract
Unltd texts
Unltd minutes
£2.90/mth monthly cost
  • eSIM Available
  • EU roaming included
  • Free delivery
EXCLUSIVE
1GB of 5G data
1 month contract
Unltd texts
250 minutes
£0.49/mth Months 1-3
£3.99/mth monthly cost
Avg monthly cost
£3.12/mth
  • Discounted price for 3 months
  • EU roaming included
  • Free delivery
EXCLUSIVE
5GB of 5G data
1 month contract
Unltd texts
Unltd minutes
£1.00/mth Months 1-3
£4.50/mth monthly cost
Avg monthly cost
£3.63/mth
  • eSIM Available
  • EU roaming included
  • Free delivery
EXCLUSIVE
5GB of 5G data
1 month contract
Unltd texts
Unltd minutes
£0.99/mth Months 1-3
£4.99/mth monthly cost
Avg monthly cost
£3.99/mth
  • Discounted price for 3 months
  • EU roaming included
  • Free delivery
4GB of 5G data
1 month contract
Unltd texts
Unltd minutes
£4.95/mth monthly cost
  • Free EU Roaming
  • Bill Capping
  • Free delivery
5GB of 5G data
12 month contract
Unltd texts
Unltd minutes
£5.00/mth monthly cost
  • EU roaming included
  • Powered by EE
  • Free delivery
5GB of 5G data
1 month contract
Unltd texts
Unltd minutes
£5.00/mth monthly cost
  • EU roaming included
  • Unrestricted tethering in the UK
  • Free delivery
4GB of 5G data
1 month contract
Unltd texts
Unltd minutes
£5.00/mth monthly cost
  • EU roaming included
  • Discounted price for first month
  • Free delivery
3GB of 5G data
1 month contract
1000 texts
1000 minutes
£5.00/mth monthly cost
  • EU roaming included
  • Powered by EE
  • Free delivery
3GB of 5G data
12 month contract
Unltd texts
Unltd minutes
£5.00/mth monthly cost

(Prices may change during contract) Price could rise by CPI + 3.9% in April

  • Free delivery

Black Friday SIM only deals 2023

Black Friday bag

There are major savings to be had on SIM only deals for Black Friday and Cyber Monday. We've tracked down the very best SIMs from the likes of Three, O2, and Vodafone right here.

Compare deals

Our pick of the standout Black Friday & Cyber Monday SIM only deals for 2023

We'll be taking stock of all the SIM contracts networks are offering this year and highlighting the standout offers on this page.  

Our best Three Black Friday SIM deals

Provider Data Amount Contract Length Monthly Costs
Three sim only 8GB data 12 months £7.00
Three sim only 30GB data 12 months £8.00
Three sim only 120GB data 12 months £12.00
  • Three sim only
    5G
    • 8GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • £7.00 per month
    12 month contract From Three Mobile
  • Three sim only
    5G
    • 30GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • £8.00 per month
    12 month contract From Three Mobile
  • Three sim only
    5G
    • 120GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • £12.00 per month
    12 month contract From Three Mobile

Three offers excellent 5G coverage, as well as decent prices and generous allowances.

What's more, it runs some tempting deals during Black Friday. This year, you can get a 12-month SIM plan that gives you 120GB of data for £12 a month.

Our best O2 Black Friday SIM deals

Provider Data Amount Contract Length Monthly Costs
O2 sim only 6GB data 12 months £6.99
O2 sim only 40GB data 12 months £10.00
O2 sim only 50GB data 12 months £12.00
  • O2 sim only
    5G
    • 6GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • EU roaming included
    • £6.99 per month
    12 month contract From O2
  • O2 sim only
    5G
    • 40GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • EU roaming included
    • £10.00 per month
    12 month contract From O2
  • O2 sim only
    5G
    • Exclusive
    • 50GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • Claim £20 Amazon voucher
    • £12.00 per month
    12 month contract From O2

O2 is outstanding for freebies, with the O2 Priority scheme offering the most extensive range of freebies and promotions of any network.

For Black Friday this year, one of O2's top deals is its 30GB for £8 a month plan, available on a 12-month contract. 

Our best SMARTY Black Friday SIM deals

Provider Data Amount Contract Length Monthly Costs
SMARTY sim only 6GB data 1 month £6.00
SMARTY sim only 16GB data 1 month £8.00
SMARTY sim only 150GB data 1 month £15.00
  • SMARTY sim only
    5G
    • 6GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • EU roaming included
    • £6.00 per month
    1 month contract From SMARTY
  • SMARTY sim only
    5G
    • Exclusive
    • 16GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • EU roaming included
    • £8.00 per month
    1 month contract From SMARTY
  • SMARTY sim only
    5G
    • 150GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • EU roaming included
    • £15.00 per month
    1 month contract From SMARTY

SMARTY stands out for its affordable 30-day plans, as well as the offer of discounts for customers at the end of the month for any unused data they have. 

All SMARTY plans come with unlimited calls and texts, with the option to cancel at any time with 30 days' notice.

It's well worth checking out its Black Friday deals, where you can bag even more data for a low monthly price. For example, SMARTY is offering 80GB for a mere £10 a month (on a flexible one-month plan).

Our best Lycamobile Black Friday SIM deals

Provider Data Amount Contract Length Monthly Costs
Spusu sim only 1GB data 1 month £2.90
Spusu sim only 1GB data 1 month £2.90
Spusu sim only 1GB data 1 month £2.90
  • Spusu sim only
    5G
    • 1GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • eSIM Available
    • £2.90 per month
    1 month contract From Spusu
  • Spusu sim only
    5G
    • 1GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • eSIM Available
    • £2.90 per month
    1 month contract From Spusu
  • Spusu sim only
    5G
    • 1GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • eSIM Available
    • £2.90 per month
    1 month contract From Spusu

One of the most budget-minded networks out there, Lycamobile's main appeal is its inclusion of international minutes with every SIM plan.

You can cut the cost of a Lycamobile SIM deal even more during Black Friday. This year, it's offering a one-month contract with 15GB of data – all for just £1.99 per month for the first six months (rising to £8.50 per month afterwards).

Our best giffgaff Black Friday SIM deals

Provider Data Amount Contract Length Monthly Costs
GiffGaff sim only 40GB data 1 month £10.00
GiffGaff sim only 40GB data 1 month £10.00
GiffGaff sim only 40GB data 1 month £10.00
  • GiffGaff sim only
    5G
    • 40GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • £10.00 per month
    1 month contract From giffgaff
  • GiffGaff sim only
    5G
    • 40GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • £10.00 per month
    1 month contract From giffgaff
  • GiffGaff sim only
    5G
    • 40GB of 5G data
    • Unlimited minutes
    • Unlimited texts
    • download speed limit
    • £10.00 per month
    1 month contract From giffgaff

With plenty of choice when it comes to affordable SIMs on a variety of contract lengths, giffgaff is a great option for those looking for a simple SIM-only deal.

For Black Friday this year, giffgaff is offering 500GB for £20 a month (on an 18-month contract) – plus an £80 gift card and increased data for the first six months.

Can't find a deal here that suits you? Take a look at a wider range on our SIMs comparison page. 

Looking for a new phone instead? Head to our dedicated page to compare Black Friday and Cyber Monday phone deals

Frequently asked questions

When do networks announce Black Friday SIM only deals?

Black Friday and Cyber Monday 2023 take place on 24th and 27th November, respectively. But Black Friday-branded, cut-price SIM only deals from major networks usually go on sale much earlier in the month.

We'll be flagging what we consider the best deals right here, as and when they come to market. So be sure to keep checking this page, so you don't miss the chance to save some money.

Looking for Black Friday deals on Samsung Galaxy phones too? Take a look at our pick of the best.

We've sought out the best iPhone deals for Black Friday too. Take a look and see what's on offer.

How much can I save on a SIM deal on Black Friday?

The best savings are usually to be had on SIM only plans tailored to heavy users. Shop around on Black Friday weekend and it's not difficult to get a SIM deal with a high monthly allowance for significantly lower price per month.

At the other end of the pricing scale, look out for Black Friday SIMs from the likes of iD Mobile and giffgaff that get you a decent amount of data for not much more than £5 per month.

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