Cyber Monday SIM only deals

Black Friday

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 O2, EE, Three and Vodafone right here.

Our pick of the standout Cyber Monday SIM only deals for 2019

We've taken stock of all the SIM contracts networks are offering this year and picked out what we consider the best.

Cyber Monday SIMs with unlimited data

Provider Data Amount Contract Length Monthly Costs
GiffGaff sim only Unlimited data 1 month £25.00
SMARTY sim only Unlimited data 1 month £22.00
O2 sim only 100GB data 12 months £20.00
Three sim only Unlimited data 24 months £10.00
VOXI sim only 45GB data 1 month £20.00
Tesco Mobile sim only 50GB data 12 months £25.00
  • GiffGaff sim only
    4G
    • Unlimited 4G data
    • Unlimited minutes
    • Unlimited texts
    • Speed restrictions apply after 40GB of data use
    • £25.00 per month
    1 month contract From giffgaff
  • SMARTY sim only
    4G
    • Unlimited 4G data
    • Unlimited minutes
    • Unlimited texts
    • £22.00 per month
    1 month contract From SMARTY
  • O2 sim only
    4G
    • 100GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £20.00 per month
    12 month contract From O2
  • Three sim only
    4G
    • Unlimited 4G data
    • Unlimited minutes
    • Unlimited texts
    • £10.00 per month
    24 month contract From Three Mobile
  • VOXI sim only
    4G
    • 45GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Unlimited social data
    • £20.00 per month
    1 month contract From VOXI
  • Tesco Mobile sim only
    4G
    • 50GB of 4G data
    • 5000 minutes
    • 5000 texts
    • £25.00 per month
    12 month contract From Tesco Mobile

Cyber Monday SIMs for light users

Provider Data Amount Contract Length Monthly Costs
ID sim only 2GB data 1 month £6.00
Lebara Mobile sim only 3GB data 1 month £6.99
Vodafone sim only 5GB data 12 months £8.00
Three sim only 8GB data 12 months £9.00
  • ID sim only
    4G
    • 2GB of 4G data
    • 500 minutes
    • Unlimited texts
    • Free Data Rollover
    • £6.00 per month
    1 month contract From iD Mobile
  • Lebara Mobile sim only
    4G
    • Exclusive
    • 3GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • 100 international minutes to over 40 countries
    • £6.99 per month
    1 month contract From Lebara Mobile
  • Vodafone sim only
    4G
    • 5GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Includes 4GB data bonus
    • £8.00 per month
    12 month contract From Vodafone
  • Three sim only
    4G
    • 8GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £9.00 per month
    12 month contract From Three Mobile

Cyber Monday 30-day SIMs

Provider Data Amount Contract Length Monthly Costs
VOXI sim only 6GB data 1 month £10.00
ID sim only 20GB data 1 month £14.00
GiffGaff sim only 40GB data 1 month £20.00
Lebara Mobile sim only 3GB data 1 month £6.99
SMARTY sim only 4GB data 1 month £10.00
  • VOXI sim only
    4G
    • 6GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Unlimited social data
    • £10.00 per month
    1 month contract From VOXI
  • ID sim only
    4G
    • Exclusive
    • 20GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Includes a £14 prepaid Mastercard - Free data rollover
    • £14.00 per month
    1 month contract From iD Mobile
  • GiffGaff sim only
    4G
    • 40GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £20.00 per month
    1 month contract From giffgaff
  • Lebara Mobile sim only
    4G
    • Exclusive
    • 3GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • 100 international minutes to over 40 countries
    • £6.99 per month
    1 month contract From Lebara Mobile
  • SMARTY sim only
    4G
    • 4GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Discount on unused data
    • £10.00 per month
    1 month contract From SMARTY

Cyber Monday SIMs for roaming

Provider Data Amount Contract Length Monthly Costs
Three sim only 8GB data 12 months £9.00
GiffGaff sim only Unlimited data 1 month £25.00
O2 sim only 100GB data 12 months £20.00
  • Three sim only
    4G
    • 8GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £9.00 per month
    12 month contract From Three Mobile
  • GiffGaff sim only
    4G
    • Unlimited 4G data
    • Unlimited minutes
    • Unlimited texts
    • Speed restrictions apply after 40GB of data use
    • £25.00 per month
    1 month contract From giffgaff
  • O2 sim only
    4G
    • 100GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £20.00 per month
    12 month contract From O2

VOXI Cyber Monday SIM deals

VOXI specialises in affordable SIM-only plans with no long-term contracts and the option to use use social media sites as much as you like without eating into your data allowance.

It also offers incentives when you recommend a friend and inclusive roaming in 48 locations.

Provider Data Amount Contract Length Monthly Costs
VOXI sim only 6GB data 1 month £10.00
VOXI sim only 15GB data 1 month £15.00
VOXI sim only Unlimited data 1 month £30.00
  • VOXI sim only
    4G
    • 6GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Unlimited social data
    • £10.00 per month
    1 month contract From VOXI
  • VOXI sim only
    4G
    • 15GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Unlimited social data
    • £15.00 per month
    1 month contract From VOXI
  • VOXI sim only
    5G
    • Unlimited 5G data
    • Unlimited minutes
    • Unlimited texts
    • £30.00 per month
    1 month contract From VOXI

Virgin Mobile Cyber Monday SIM deals

Virgin Mobile combines good coverage with affordable plans that include unlimited texts. As with VOXI, it also allows you to use Twitter, Facebook Messenger and WhatsApp Messaging without affecting your data-allowance.

You also get inclusive roaming in up to 43 locations and the option to roll over unused data to the next month.

Tesco Mobile Cyber Monday SIM deals

Tesco Mobile offers ‘Anytime Upgrade Flex’ contracts for your phone and data that are cheap and flexible, with the option to change your data plan with just 30 days' notice.

Other benefits include capped contracts, discounts for family members and Clubcard points every time you pay your mobile bill.

Provider Data Amount Contract Length Monthly Costs
Tesco Mobile sim only 50GB data 12 months £25.00
Tesco Mobile sim only 100GB data 12 months £50.00
  • Tesco Mobile sim only
    4G
    • 50GB of 4G data
    • 5000 minutes
    • 5000 texts
    • £25.00 per month
    12 month contract From Tesco Mobile
  • Tesco Mobile sim only
    4G
    • 100GB of 4G data
    • 5000 minutes
    • 5000 texts
    • £50.00 per month
    12 month contract From Tesco Mobile

BT Mobile Cyber Monday SIM deals

BT Mobile plans offer unlimited texts, discounts for BT broadband customers and access to over five thousand Wi-Fi hotspots across the UK.

Depending on which plan you pick, you can watch BT Sport on your phone via the BT Sport app at no extra cost. All plans feature inclusive roaming in 47 locations.

Three Cyber Monday SIM deals

Three's Go Roam and Go Roam Around the World international roaming schemes are some of the most comprehensive and wide-ranging offered by a UK network.

Customers also get freebies and money-off deals through Three's Wuntu app. Three's premium plans also include its Go Binge scheme, which allows you to use select streaming services without using up any data.

Provider Data Amount Contract Length Monthly Costs
Three sim only 8GB data 12 months £9.00
Three sim only 12GB data 12 months £10.00
Three sim only Unlimited data 12 months £22.00
  • Three sim only
    4G
    • 8GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £9.00 per month
    12 month contract From Three Mobile
  • Three sim only
    4G
    • 12GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £10.00 per month
    12 month contract From Three Mobile
  • Three sim only
    4G
    • Unlimited 4G data
    • Unlimited minutes
    • Unlimited texts
    • £22.00 per month
    12 month contract From Three Mobile

Sky Mobile Cyber Monday SIM deals

Sky Mobile's key selling points include the option to store unused data for up to three years and use it whenever you like, as well as unlimited streaming with Sky apps for Sky TV customers.

Its Mix scheme also allows you to customise your plan to your needs and change it from month to month.

Provider Data Amount Contract Length Monthly Costs
Sky Mobile sim only 3GB data 12 months £6.00
Sky Mobile sim only 8GB data 12 months £10.00
Sky Mobile sim only 15GB data 12 months £18.00
  • Sky Mobile sim only
    4G
    • 3GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Unlimited streaming for Sky TV customers
    • £6.00 per month
    12 month contract From Sky Mobile
  • Sky Mobile sim only
    4G
    • 8GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Unlimited streaming for Sky TV customers
    • £10.00 per month
    12 month contract From Sky Mobile
  • Sky Mobile sim only
    4G
    • 15GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Unlimited streaming for Sky TV customers
    • £18.00 per month
    12 month contract From Sky Mobile

EE Cyber Monday SIM deals

EE is the UK's fastest 4G network and offers the widest coverage too.

Select contracts come with six months' free Apple music. And if you choose a plan with Swappable benefits you can choose from a host of sweeteners, such as free BT Sport or Amazon Prime Video, and change between them on a monthly basis.

If you're an existing EE broadband customer, you'll get an extra 5GB of data per month when you add a mobile phone or SIM only plan to your package.

Provider Data Amount Contract Length Monthly Costs
EE sim only 15GB data 1 month £15.00
EE sim only 50GB data 12 months £24.00
EE sim only 100GB data 12 months £27.00
  • EE sim only
    4G
    • 15GB of 4G data
    • 2000 minutes
    • Unlimited texts
    • Triple data for 6 month - Includes data rollover
    • £15.00 per month
    1 month contract From EE Mobile
  • EE sim only
    4G
    • 50GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £24.00 per month
    12 month contract From EE Mobile
  • EE sim only
    4G
    • 100GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £27.00 per month
    12 month contract From EE Mobile

O2 Cyber Monday SIM deals

All O2 customers get membership of its the O2 priority offers scheme, which provides discounts, coupons and money-off promotions, as well a priority booking and perks at O2 venues.

O2 is also consistently rated among the UK's best networks for coverage quality and offers inclusive roaming in its Europe Zone.

Provider Data Amount Contract Length Monthly Costs
O2 sim only 100GB data 12 months £20.00
  • O2 sim only
    4G
    • 100GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • £20.00 per month
    12 month contract From O2

SMARTY Cyber Monday SIM deals

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.

Provider Data Amount Contract Length Monthly Costs
SMARTY sim only 6GB data 1 month £7.50
SMARTY sim only 4GB data 1 month £10.00
SMARTY sim only Unlimited data 1 month £22.00
  • SMARTY sim only
    4G
    • Exclusive
    • 6GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Triple data for 12 months - Discount on unused data
    • £7.50 per month
    1 month contract From SMARTY
  • SMARTY sim only
    4G
    • 4GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Discount on unused data
    • £10.00 per month
    1 month contract From SMARTY
  • SMARTY sim only
    4G
    • Unlimited 4G data
    • Unlimited minutes
    • Unlimited texts
    • £22.00 per month
    1 month contract From SMARTY

iD Mobile Cyber Monday SIM deals

iD Mobile's key selling points include keen prices, data rollover, inclusive roaming in 50 locations for no extra charge and the option to set a limit on how much you spend.

Provider Data Amount Contract Length Monthly Costs
ID sim only 20GB data 1 month £14.00
ID sim only 7GB data 1 month £9.00
  • ID sim only
    4G
    • Exclusive
    • 20GB of 4G data
    • Unlimited minutes
    • Unlimited texts
    • Includes a £14 prepaid Mastercard - Free data rollover
    • £14.00 per month
    1 month contract From iD Mobile
  • ID sim only
    4G
    • Exclusive
    • 7GB of 4G data
    • 500 minutes
    • Unlimited texts
    • Free Data Rollover
    • £9.00 per month
    1 month contract From iD Mobile

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 take place on 29th November and 1st December 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 monthly allowance of 20GB of more for significantly less than £15 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.