Save big on our latest Black Friday 2025 SIM deals
Black Friday 2025 is here, and there are a range of great SIM deals to choose from this November.
If you're still paying high monthly prices for a handset you've already paid off, you could save £321* a year by keeping your phone and moving to a cheap SIM only plan.
Here's our pick of the latest and greatest offers available during the 2025 Black Friday period.
Uswitch exclusive Black Friday SIM deals
Lebara
In a Uswitch-exclusive offer, Lebara is putting a huge discount on its 50GB monthly rolling SIM plan for the first four months.
Enjoy free roaming abroad and no mid-contract price rises in this Uswitch Plus-exclusive deal. Requires email signup.
Lebara Mobile SIM Deal
Uses Vodafone's Network
50 GBof 5G data
£2.39 a monthfor 4 months, then £7.95Price details
1 month contract
Want to compare a wide range of SIM deals? Browse and filter through thousands of offers to find the right network and contract for you.
Compare SIM only deals
Browse our full range of SIM only mobile deals on Uswitch.
More SIM deals on Uswitch this Black Friday
O2
This Black Friday, O2 is competing heavily with the smaller brands by offering a 100GB SIM deal for just £10 a month.
Not only is this so much data that you'll likely never hit the maximum allowance, the benefits available through O2 are always top notch.
O2 SIM Deal
Uses O2's Network
100 GBof 5G data
£10.00 a monthuntil April 2026then price rises every April in contract by £2.50Price details
12 month contract
SMARTY
The virtual mobile network is offering a 50GB SIM only contract for just £8 per month during Black Friday.
Even better, it's for a rolling monthly contract, so you can avoid mid-contract price rises and move to a different deal whenever it suits you.
SMARTY SIM Deal
Uses Three Mobile's Network
50 GBof 5G data
£8.00 a month
1 month contract
iD Mobile
Enjoy a huge 60GB of mobile data for just £8 a month this Black Friday, courtesy of virtual network iD Mobile.
The deal also comes with three months' free Apple Music and Arcade, so you get a lot of great value from this SIM Only offer.
iD Mobile SIM Deal
Uses Three Mobile's Network
60 GBof 5G data
£8.00 a month
1 month contract
Talkmobile
An incredibly great value deal when it comes to mobile data allowance, Talkmobile is offering a huge 50GB for just £7.95 during Black Friday.
As is the case with many smaller networks, it's also on a monthly rolling basis. So you won't have to deal with any mid-contract price rises.
Compare mobile contracts deals
Browse our best contract deals for the latest handsets, including the latest Apple iPhone 17.
*Switching from an ending 24-month handset contract to a SIM only contract (and keeping your existing handset) could save you £321 (£321.67) per year, or £26.81 per month. See more here: Uswitch savings