O2 SIM Deal
Uses O2's Network
72 GBof 5G data
£9.00 a monthuntil April 2026then price rises every April in contract by £2.50Price details
12 month contract
Includes roaming in 48 destinations
Uses O2's Network
72 GBof 5G data
£9.00 a monthuntil April 2026then price rises every April in contract by £2.50Price details
12 month contract
Includes roaming in 48 destinations
99% of the UK can access O2's 4G network, and 5G in over 300 UK towns and cities too.
O2's average download speed is 23Mbps. Based on Opensignal's network experience report (September 2024).
O2 allow roaming in 40+ destinations in Europe at no extra cost, up to a 25GB data limit. Extra charges apply outside this.
Your contract
Monthly cost for 3 months (from 1 January 2026)
£9.00
Monthly cost for 9 months (from 1 April 2026)
£11.50
Total cost
£130.50
Some providers set annual price rises to cover predicted changes in service costs. This is usually linked to inflation, but from January 2025 they have to tell you the exact amount upfront.
In our breakdown, we've assumed your first bill will be next month, and your billing date falls after the date any price rises come into place.
Enjoy O2 perks using Priority Moments. Get access to everything from free coffee and sausage rolls to discounts at top attractions and competitions to win holidays and experiences.
Get exclusive and priority access tickets to gigs 48 hours early as an O2 customer. You can also enjoy perks at O2 venues, including fast-track entry and access to exclusive bars.
O2 customers can use their texts, calls and data allowance for no extra charge in a range of European and a small number of non-EU locations, in what O2 dubs, 'Europe Zone'.
For customers looking to travel outside the Europe Zone, there is an O2 Travel Bolt On available in selected destinations that gives you unlimited calls, texts and internet data for £6 per day.
O2 Travel Pay As You Go is also on offer for £1.99 per day in locations like Guernsey, the Isle of Man, Jersey, Monaco and Switzerland.
Even better, O2 customers who are also on Virgin Media can enjoy roaming in 75 destinations at no extra cost, with O2 Travel Inclusive Zone. These destinations include the US, Canada and Australia.