Important: PhoneContracts.Online is an independent mobile retailer and is not officially endorsed by or affiliated with O2 (Telefónica UK Limited). We are a licensed reseller of O2 products. All O2 trademarks belong to Telefónica UK Limited.
Sold by an Independent Reseller

O2 Mobile Contracts & SIM Only Deals

Compare and buy O2 contracts through PhoneContracts.Online — an independent retailer. We offer personalised advice, in‑store pickup, and expert support.

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5G Coverage

O2's expanding 5G network

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Up to Unlimited

Data to suit any usage

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Flexible Terms

1, 12 & 24‑month options

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In‑Store Available

London E16 — walk in today

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Reseller Notice: PhoneContracts.Online is an independent mobile retailer and is not the official O2 website. We are not Telefónica UK Limited (O2). We are a licensed reseller of O2 products and services. Purchasing through us gives you a genuine O2 contract — you will become an O2 customer with full O2 network coverage, service, and support. The name "O2" and related marks are trademarks of Telefónica UK Limited.

O2 SIM Only Deals

Keep your handset, just change your SIM. All plans include unlimited calls & texts. Prices shown are per month.

30 Day Rolling
5 GB
O2 Starter SIM
Unlimited calls & texts
O2 4G/5G network
No long‑term tie‑in
£15
/month
Call to Order
12 Months
50 GB
O2 Essential 50
Unlimited calls & texts
O2 4G/5G network
Roaming in 75+ countries
£18
/month
Call to Order
Best Value · 12 Mo
100 GB
O2 Smart 100
Unlimited calls & texts
5G ready
EU roaming included
O2 Priority access
£25
/month
Call to Order
24 Months
O2 Unlimited
Truly unlimited data
5G where available
EU roaming included
O2 Priority + Extras
£35
/month
Call to Order

* All prices are indicative. Final pricing confirmed at point of sale. Availability subject to credit check and stock. Call us or visit our store for the latest offers.

O2 Phones on Contract

Get a brand‑new handset with your O2 contract. Monthly payments include both your phone and your airtime plan.

Popular
iPhone 15
128GB · O2 Network
Data
100GB
Term
24 mo
Network
5G
£55
/month £0 upfront
Call to Order: 0330 059 7087
Samsung Galaxy S24
256GB · O2 Network
Data
Unlim.
Term
24 mo
Network
5G
£62
/month £29 upfront
Call to Order: 0330 059 7087
Best Deal
Google Pixel 8
128GB · O2 Network
Data
50GB
Term
24 mo
Network
5G
£42
/month £0 upfront
Call to Order: 0330 059 7087

* Handset availability and exact pricing subject to change. All contracts subject to credit approval. Call us for the most up‑to‑date deals.

How to Get Your O2 Contract

1

Choose a Deal

Browse our O2 SIM only and phone deals above and pick the one that suits you.

2

Call or Visit

Call 0330 059 7087 or come into our store at 15 Western Gateway, London E16 1FD.

3

Credit Check

We run a quick, soft credit check on your behalf to confirm contract eligibility.

4

You're Live!

Receive your genuine O2 SIM and enjoy full O2 network service immediately.

Come See Us in London E16

Not comfortable ordering over the phone? No problem. Our friendly team is available in‑store at 15 Western Gateway, London E16 1FD — just a short walk from Royal Victoria DLR station.

  • Browse all O2 deals in person
  • Get free, impartial advice on the best plan for you
  • Walk out with your new O2 SIM same day
  • In‑store support for number porting
Get Directions 0330 059 7087

Ready to Get Your O2 Deal?

Call our team now or visit us in‑store. We'll get you set up with the right O2 contract today.

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Reseller Disclosure: PhoneContracts.Online (phonecontracts.online) is an independent mobile phone retailer operating at 15 Western Gateway, London E16 1FD. We are not O2 (Telefónica UK Limited), nor are we endorsed, sponsored, or officially affiliated with O2 or any other network operator. When you purchase an O2 contract through us, you enter into a contract with O2 as the network provider. "O2" and related trademarks are the exclusive property of Telefónica UK Limited. We are an authorised reseller only.