What is O2 eSIM?
The O2 eSIM is a digital SIM that allows you to activate a data plan from O2 4G and 5G network without requiring a physical SIM. With millions of satisfied customers in over 190+ countries, O2 gives you A Whole New Level of Strength with the power of fiery passion.
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Affordable Data & Calls:
Enjoy cost-effective rates for browsing, social media, and calling back home. -
Perfect for Travelers:
No roaming hassles — just a smooth and worry-free UK mobile experience.
What Our Clients Say
Hear real experiences from travelers who trust our eSIMs for seamless global connectivity.
“I used Roam eSIM on my business trip from Beijing to Paris. The setup was instant, and I didn’t have to worry about buying a new SIM in every country I visited. Perfect for work calls and emails.”
Li Wei
China
"As an exchange student from Tokyo to New York, Roam eSIM was the easiest way to stay connected. No hassle at the airport, and I could keep in touch with family back home right away."
Aiko S.
Japan
"I traveled from Seoul to Ho Chi Minh City, and Roam eSIM gave me fast internet the entire trip. Maps, translations, and even streaming worked without a problem."
Min-Jae K.
Korea
"I backpacked across Vietnam and the Philippines, and Roam eSIM made everything smoother. Just one QR code, and I stayed connected across borders."
Nguyen Hoa
Vietnam
"On my first trip to Europe, I was nervous about roaming costs. Roam eSIM was a lifesaver—affordable, reliable, and worked in every country I visited."
Carla M
Phillippines
"I flew from Germany to the US to visit family. Roam eSIM activated in seconds, and I had 5G speeds right after landing. No more searching for local SIM shops."
Stefan L.
Germany
Have Any Questions!
Find quick answers to the most common questions about eSIMs from setup to usage and coverage.
Yes! Your O2 eSIM plan supports all of the supported countries, so there will be no extra charges for you.
Many contemporary eSIM-compatible devices are capable of supporting multiple eSIMs, but they can be used only one at a time.
Yes. You can do both one call/text and one data.
Just recharge or get a new O2 eSIM plan in minutes.
Best eSIM at the Cheapest Cost
Buy eSIMs from Providers like 3G UK, Orange, O2, DTAC in more 200+ countries. Get best prices then Airalo, Holafly, Saily, Nomad & Roamless gauranteed.
Roam eSIM offers instant and best global connectivity with flexible, affordable eSIM plans for travelers. Stay connected in 100+ countries without physical SIM cards or roaming hassles.
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