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Buy a British O2 eSIM.

No obligation – NO CREDIT CHECKS
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O2 20GB

  • 20GB high-speed data / UK and EU
  • 30 day rolling, cancel anytime
  • Unlimited UK calls and texts
  • Lightning Fast 5G
  • Roam at no extra cost in EU
  • Lowest priced O2 plan
  • No EU Texts included
NOW
£ 14.00
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O2 50GB

  • 50GB high-speed UK data / 35GB in EU
  • 30 day rolling, cancel anytime
  • Unlimited UK calls and texts
  • Lightning Fast 5G
  • Roam at no extra cost in EU
  • 500 minutes of EU calls/texts included
  • Immediate activation
NOW
£ 19.00
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O2 Unlimited

  • 650GB high-speed UK data / 35GB in EU
  • 30 day rolling, cancel anytime
  • Unlimited UK calls and texts
  • Lightning Fast 5G
  • Roam at no extra cost in EU
  • 2000 minutes of EU calls included *
  • 500 EU texts included *
NOW
£ 23.50
View/Buy

Enjoy premium eSIM services from O2 at a fraction of the cost.

Get the same high-quality services you've come to expect from O2 – at a significantly lower price. Benefit from fast 5G speeds, mobile hotspot functionality, reliable network coverage, and Wi-Fi calling (UK only).

You'll also enjoy Roam Like at Home across the EU and Switzerland, just like with a regular O2 plan.

Our flexible 30-day plans offer UK data allowances from 20GB up to an impressive 650GB as well as up to 2000 minutes of EU calls included and 500 texts. Setup is quick and easy – your eSIM is pre-activated and ready to use within just two minutes of purchase. Guaranteed no hidden costs. No contract, no commitment, and cancel anytime.

Want to keep your current number? No problem – you can easily transfer it.

FAQs

Frequently Asked Questions

An O2 UK eSIM from eSIM.net gives you a full-service UK mobile plan with a real UK +44 mobile number, UK data, unlimited UK calls and texts, 5G where available and WiFi Calling on supported devices. It is ideal if you want an instant O2 eSIM for everyday UK use without waiting for a physical SIM card.

An O2 eSIM is delivered instantly by email, so there is no postage, no plastic SIM and no need to swap SIM cards. You can install the O2 eSIM on a compatible unlocked phone and keep another SIM active at the same time, making it a simple choice for UK data, calls, texts and dual-SIM use.

Yes. O2 UK domestic eSIM plans support UK mobile number portability, so you can bring an eligible UK mobile number to your O2 eSIM using a PAC code during checkout. This lets you keep your existing UK number while moving to an instant eSIM service with UK calls, texts and data.

Yes. O2 UK eSIM plans include Roam Like At Home, so you can use your included data allowance in the EU and selected roaming destinations as if you were in the UK. The plan also lets you receive calls on your UK number while roaming, making it useful for UK and European travel.
"I am new to eSIMs and never thought it would be so simple. Five minutes after placing an order the mobile plan was downloaded and active on my iPhone. Great service."
Simon Whitchurch
"I was searching for a local eSIM plan as most others seem to be roaming and more expensive. I found this and very happy with a 30 day rolling plan rather than a long contract."
Rob Whiting
"My experience with eSIM.net always a good one from purchasing to installation gives and easy and smooth path. Also there customer service quick response to any issues you may have from wrong purchase to accidental auto repay of product which are not desired. eSIM.net is the best way to go."
Sheldon Anderson
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ESIM.NET GROUP LIMITED is registered in England and Wales no. 12117745. Registered address: 107-111 Fleet Street, London, EC4A 2AB, United Kingdom.