O2,
but better
Going abroad? Skip O2 roaming. One eSIM for data in 176 countries, starting free.
One eSIM for 176 countries, same price everywhere
Free data: watch a short ad, stay online for €0
Pay per GB or go unlimited, pause anytime
O2 roaming
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Why Firsty?
One eSIM, 176 countries
Install once and use it on every trip. Same price wherever you land.
Free data with ads
Watch a short ad, get free data. Enough for messages, maps and email.
Pay per GB or go unlimited
Buy the GBs you need, or unlimited per day or month. Pause anytime.
Cheaper than roaming
Up to 90% less than roaming with your own carrier.
How does free data work?
Watch a short ad and get free data at up to 1 Mbps. You can earn up to 360 MB a day. No card, no subscription.
Do I need a new eSIM for every country?
No. One Firsty eSIM works in 176 countries, so nothing needs swapping when you travel.
Can I pause Unlimited?
Yes. Pause anytime and keep your remaining full days for later. Days never expire.
Do I keep my O2 number?
Yes. Firsty is data only and doesn't give you a new number, so calls and texts stay on O2.
Start with Firsty
Free data in 168 countries. Watch an ad, stay online.
Trusted by 1.3M+ users