CZECHIA
5 O2 roaming options from O2's official pages, checked 25 Oct 2026. See what each option costs over a trip and how it compares with a Graba SIM travel eSIM.
QUICK ANSWER
O2 (Czechia) does not publish one fixed roaming price we could verify — it depends on your plan and destination. It offers 5 roaming options, including Data Pas 14 days; Data Pas 30 days and Svět Ostatní 1GB. A prepaid Graba SIM eSIM for a week in United States costs US$15.75 for 5 GB. Checked on o2.cz, 25 Oct 2026.
5 ROAMING OPTIONS
Other options show the plan and its terms; open the official page for the current price on your plan.
Price depends on your plan — check with O2
Eligible Czech O2 customer First 10GB at high speed on Data Pas; reduced to 384kbps thereafter; verify destination package selection.
Price depends on your plan — check with O2
Eligible Czech O2 customer First 10GB at high speed on Data Pas; reduced to 384kbps thereafter; verify destination package selection.
Price depends on your plan — check with O2
Eligible Czech O2 customer First 10GB at high speed on Data Pas; reduced to 384kbps thereafter; verify destination package selection.
Price depends on your plan — check with O2
O2 Czech customers not using an eligible bundle Actual zone must be established before comparison; spending cap may apply.
Price depends on your plan — check with O2
O2 Czech customers not using an eligible bundle Actual zone must be established before comparison; spending cap may apply.
SKIP THE ROAMING BILL
Prepaid Graba SIM data for a week away. Keep your home SIM on for calls and texts with its data roaming off.
BEFORE YOU FLY
O2 prices depend on the destination zone and your plan. Open the official page linked here and find your destination before you fly.
Keep your home line on if you need calls or verification texts, but turn its Data Roaming off.
Install over Wi-Fi before you leave, then switch it on when you land.
Choose the travel eSIM for mobile data and turn automatic data switching off.
SOURCES
PRICE_AND_ZONE_INFO · checked 25 Oct 2026
https://www.o2.cz/podpora/internet/mobilni-internet-v-zahranici-roaming
GOOD TO KNOW
O2 does not publish one fixed roaming price that we could verify — it depends on your plan and destination. We list 5 O2 roaming options on this page; follow the official link for the price on your plan.
It often is for trips of more than a few days, because a prepaid eSIM is one payment for the whole trip. Compare O2's price for your plan with a Graba SIM plan for your destination.
O2 lists 4 options for this: Data Pas 14 days; Data Pas 30 days and Svět Ostatní 1GB, and more on this page. Prices without a figure depend on your plan, so check O2's official page. Confirm your destination is in the zone before you travel.
Before you land, open Settings and turn Data Roaming off for your O2 line (iPhone: Mobile Service or Cellular; Android: SIMs or Mobile network). Turn off automatic data switching too. To avoid calls and texts being charged, turn the O2 line off or use Wi-Fi calling where O2 allows it.
Yes, on a dual-SIM phone. Keep your O2 line on for calls and texts with its Data Roaming off, and set the Graba SIM eSIM as your mobile data line. O2 may still charge for calls, texts and voicemail abroad.
From O2's own website, last checked 25 Oct 2026. Each option links to the page it came from. Graba SIM is not affiliated with O2.
HOW WE CHECK
The price, currency and how it is charged were read from the operator's own website on the date shown.
The operator explains its roaming rules, but not as one fixed price — for example, inclusive roaming that depends on your plan.
The plan exists, but its price depends on your contract or destination. Use the official link to see yours.
Recorded in an earlier research pass and not re-checked yet. We show the plan name and terms, never the old price.
A blank price means we could not verify one — never that it is free. Prices include or exclude tax as the operator publishes them. Snapshot: 25 October 2026. Logos are trademarks of their owners and identify each network only; Graba SIM is not affiliated with these operators.
