£16.50 / month

O2 20GB Mobile eSIM

A cost-effective 20GB O2 eSIM plan with unlimited calls and SMS for UK users who need a reliable mobile plan without the high costs.

Perfect for light data users + EU roaming. Find out more.

Get an O2 Business eSIM from gosimless

Why choose O2 20GB plan?

An affordable entry-level plan perfect for light to moderate mobile data users. Inclusive 20GB data roaming in Europe.

Why choose O2 20GB? 🤔

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£14.50 / month

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30-day rolling contract

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Unlimited UK calls and texts

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20GB UK inclusive data

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EU roaming included up to 20GB

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5G speeds at no extra cost

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Keep your old number

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Cancel at any time

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Transparent pricing, no hidden fees

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Dedicated support team

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Who the O2 20GB eSIM is suitable for

The O2 20GB eSIM plan is designed for light data users who want reliable UK connectivity without paying for more data than they actually need. Powered by the trusted UK network O2, this plan is ideal for everyday tasks such as messaging, emails, browsing, navigation, and occasional streaming. It is particularly well suited for individuals who mainly use WiFi at home or work but still want dependable mobile data when they are out and about.

With gosimless, the entire experience is fully digital, allowing you to activate your eSIM instantly by scanning a QR code, with no physical SIM card, no paperwork, and no long-term contract. The 20GB allowance gives you a cost-effective balance between flexibility and control, making it a practical choice for students, professionals, and travellers who want simplicity and predictable usage.

Inclusive European roaming means you can use upto 20GB of mobile data to stay connected while travelling across Europe without worrying about extra charges. In addition, you receive an allowance of 500 minutes and 500 texts per calendar month for making UK to Europe calls and SMS.

Online management through gosimless gives you the freedom to upgrade or switch plans whenever your needs change. It is a straightforward, affordable way to access the O2 network without the commitment of traditional mobile contracts.

Need more data? We offer mobile eSIMs with even more data on our O2 Unlimited and O2 50GB plans.

Frequently asked questions

This plan is best for light data users who mainly rely on WiFi but need mobile data for browsing, messaging, emails, and everyday use when on the move.

Your 20GB data can be used on anything, including in your browser to surf the net and on any app. 20GB is suitable for regular web browsing, social media, emails, maps, music streaming, and occasional video streaming throughout the month.

After purchase, you receive a QR code which you scan on your eSIM-compatible device. Follow the on-screen incstructions to complete set-up. Activation is quick and usually takes just a few minutes.

Yes. The plan is completely contract-free, with 30-day recurring billing that renews every 30 days. The O2 20GB eSIM plan from gosimless has no long-term contract, giving you full flexibility to change or cancel your plan.

Yes. The O2 20GB eSIM plan includes inclusive roaming across Europe, allowing you to use your data while travelling without additional roaming charges. You get to make and receive unlimited calls and SMS locally in the roaming destination. You also get to make 500 call minutes and send 500 SMS messages from Europe back home to the UK.

Yes. If your data usage increases, you can easily switch to a higher O2 eSIM plan through gosimless, such as our O2 5GB or O2 Unlimited mobile plans. To avoid excessive charges, all mobile plans come with a £1 spend cap by default.

Most modern smartphones support eSIM technology. You should check your device specifications to confirm compatibility before purchasing.