Discover simple, reliable connectivity with O2 SIM cards and O2 mobile deals designed to fit your lifestyle. Whether you're looking for a new mobile plan, upgrading your handset, or switching to a flexible SIM-only option, our carefully selected O2 deals give you the freedom and value you expect from a trusted UK network.
With O2 Mobile Deals, you benefit from strong nationwide coverage, dependable service, and customer-focused solutions that keep you connected wherever life takes you.
Why Choose O2 SIM Cards?
Flexible Plans That Fit You
We understand that everyone uses their phone differently. That's why O2 SIM cards offer a wide range of flexible plans to suit your needs. Whether you prefer generous data allowances for streaming and browsing or unlimited calls and texts for staying in touch, there's a plan tailored just for you.
Reliable UK Network Coverage
O2 mobile deals give you access to a trusted and consistent network across the United Kingdom. From busy city centres to quieter rural areas, you can enjoy clear calls, fast data speeds, and dependable connectivity without compromise.
Quick & Easy Activation
Getting started with an O2 SIM card is fast and hassle-free. Simply choose your plan, insert the SIM into your unlocked device, and follow the easy activation steps. You'll be connected in minutes and ready to enjoy everything O2 has to offer, including access to 5G where available.
Dedicated Customer Support
Customer satisfaction comes first. O2's friendly and knowledgeable support team is always available to help with queries, technical assistance, or account-related questions. Their commitment to efficient and reliable support ensures a smooth experience from day one.
O2 Priority Benefits
As an O2 customer, you gain access to O2 Priority — unlocking exclusive rewards, early ticket access, special discounts, and unique experiences across entertainment, dining, and events. It's more than a mobile plan; it's added value for your everyday life.
Commitment to Sustainability
O2 is committed to reducing environmental impact and promoting responsible business practices. By choosing an O2 SIM card, you're supporting ongoing efforts to build a more sustainable and environmentally conscious future.
Join O2 Today for the Latest Deals
Choose O2 and enjoy flexible mobile plans, reliable connectivity, and exclusive customer benefits. Stay connected to what matters most with a plan designed around you.
Contact us today to explore our latest O2 mobile deals, SIM-only offers, and promotions. Let's build a connected future together.
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Find your perfect Pay Monthly SIM
Happy with your phone? Save with a Pay Monthly SIM only deal. Keep your number when switching networks and choose from flexible 30-day, 12-month, or 24-month plans. Browse our best SIM only contracts today.
Are you a Virgin Media broadband customer?
Get double data, boosted broadband speeds, and more when you're with both Virgin Media and O2.
150GB
Data
24 Month Airtime Plan
Unlimited UK Minutes & Texts
Offers Included
- Save up to £168, get 150GB for £18.99. Ends 4 February.
- Roam at no extra cost in 75 destinations worldwide, including the EU, USA, Australia and Mexico.
- Take last month's unused data from your main allowance into the next, with data rollover.
Monthly
£18.99
£21.49 from
Apr 2026 bill
£23.99 from
Apr 2027 bill
Airtime Plan will increase every April bill thereafter by £2.50
Call now30GB
Data
24 Month Airtime Plan
Unlimited UK Minutes & Texts
Offers Included
- Great low price. Get 30GB for £15. Ends 4 February.
- Roam freely in the EU. Only on O2. Up to 25GB.
- Choose 3 months of Disney+ Standard, Amazon Prime, or more.
Monthly
£15.00
£17.50 from
Apr 2026 bill
£20.00 from
Apr 2027 bill
Airtime Plan will increase every April bill thereafter by £2.50
Call nowUnlimited
Data
Fair usage applies
24 Month Airtime Plan
Unlimited UK Minutes & Texts
Offers Included
- Great low price. Get Unlimited data for £21. Ends 4 February.
- Roam freely in the EU. Only on O2. Up to 25GB.
- Choose 3 months of Disney+ Standard, Amazon Prime, or more.
Monthly
£21.00
£23.50 from
Apr 2026 bill
£26.00 from
Apr 2027 bill
Airtime Plan will increase every April bill thereafter by £2.50
Call now