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Buy a UK O2 eSIM

No Commitment - Cancel Anytime
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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
ÂŁ 23.50
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*   During Checkout you will have the option to save up to 15% discount by subscribing for 3 or 6 months.

Our best selling UK eSIM which includes a mighty 650GB fast-speed data in the UK and 35GB whilst roaming free in the EU. Up to 2,000 minutes of calls within the EU and unlimited calls within country. 

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.
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