Interested in reviews of O2 Annual data connection 1.2TB? It got 4.6 out of 5 stars from our customers. Find specific customer reviews of O2 Annual data connection 1.2TB below. We will appreciate if you also share your experiences with O2 Annual data connection 1.2TB after purchasing.
Rated 08/06/2026, variant O2 Annual data connection 1.2TB
Verified purchase - review from a price comparison website
It works on the 5G network both at home and at the holiday cottage. 100GB per month is enough.
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Pavel, Praha 9
Rated 14/02/2026, variant O2 Annual data connection 1.2TB
Verified purchase - review from a price comparison website
sufficient data
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Customer, PRAHA 12 Kamýk
Rated 16/06/2026, variant O2 Annual data connection 50GB
Verified purchase
It works well, just as it should!
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Jan, Mnichovo Hradiště
Rated 08/06/2026, variant O2 Annual data connection 50GB
Verified purchase - review from a price comparison website
50 GB of data to use as you like throughout the year, not just for a month
It is not possible to purchase an eSIM directly; you must visit a branch in person to convert it – this cannot be done online
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Stanislava, Mladá Boleslav Debř
Rated 05/06/2026, variant O2 Annual data connection 50GB
Verified purchase - review from a price comparison website
Good price, fast delivery
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Martin, Pardubice
Rated 25/05/2026, variant O2 Annual data connection 15GB
Verified purchase - review from a price comparison website
While it is the cheapest card with data for a year, it is not worth it if you require eSim. You have to physically go to a branch to activate it, where they can also tell you: "We're out of QR code papers, come back in a few days when they arrive. And if they already have the QR papers, they ask for 99 CZK from the transfer to eSim at the branch (you can't do it via My O2 or the info line). Crazy O2 in prehistoric times. Otherwise, of course, 50GB is much better value for money, and even the 99 CZK for the transfer to eSim at the branch is better "dissolved in the price".
The cheapest solution
Disadvantageous in terms of price/volume
Flying around O2 branches for eSim
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Company
Rated 23/05/2026, variant O2 Annual data connection 15GB
Verified purchase
price per year
Unfortunately the Goodwe inverter doesn't work with it, O2 has tighter network security and firewalls on its mobile tariffs that evaluate outgoing inverter communication as a threat and block it.
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Customer, Praha
Rated 23/05/2026, variant O2 Annual data connection 50GB
Verified purchase - review from a price comparison website
easy to use
unrealistic indication of data usage
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Josef, Morkovice
Rated 16/05/2026, variant O2 Annual data connection 50GB
Verified purchase - review from a price comparison website
works as it should
It doesn't have a PIN on you don't have to bother with turning it off in the phone and you can put it straight into the camera
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Michal, Brno 24
Rated 19/04/2026, variant O2 Annual data connection 50GB
Verified purchase
I have bought 3 times already and will buy again. Probably the cheapest mobile data solution we can get. However, you have to go to the shop and pay 100 CZK to exchange it for an esim. There is no need for authentication, credit charging, etc. as mentioned here (that's only if someone wants to use an older card without credit, not a newly purchased one).
Cheaper than from O2 directly
You can trade it for an esim for a hundred
with little data usage, it really lasts a year
I got constant unsolicited texts from my first sim. The number belonged to a Mr. Hejduk who tried to take all kinds of loans from different companies every week. Although the sim is data-only, sms and calls can't be turned off, and O2 apparently recycles numbers
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