Poland has fast, dense mobile coverage and cheap travel data. Kraków, Warsaw, Gdańsk and Wrocław are excellently covered, and so are the trains between them. The few gaps are in the Tatra mountains and some eastern forests — and near the eastern border, which is also the EU's external border.
Short answer: a 5–10GB Poland plan installed before you fly suits most trips. In the Tatras, download offline maps before hiking.
What a Poland eSIM costs
At the time of writing (October 2026), Wanderly's Poland plans start at $2.99 for 1GB, with 5GB around $5 and 10GB for 30 days around $8. The median across data-only Poland plans is about $0.80 per GB — well under the $1.43 median across 187 countries in the Wanderly eSIM Price Index.
Do you need an eSIM with your phone plan?
EU plans roam in Poland at domestic rates, subject to fair use. UK, US and Canadian plans usually charge for roaming. See eSIM vs international plan.
Networks and coverage
Poland's networks are Orange, Play, Plus and T-Mobile. Travel eSIMs connect to a partner network automatically.
- Kraków and Warsaw (including the Warsaw Metro): excellent 4G and 5G.
- Gdańsk, Wrocław, Poznań: excellent.
- Auschwitz-Birkenau and Wieliczka Salt Mine: coverage at the sites; underground in the salt mine it is limited.
- Zakopane and the Tatras: good in town; patchy on high trails such as Morskie Oko and Rysy.
- Białowieża Forest: limited in the forest itself.
- PKP Intercity trains: good along the main lines.
Near the borders with Belarus and Ukraine — outside the EU — phones can occasionally pick up a foreign network. Keep your home line's data roaming off in eastern border areas.
How much data you need
| Trip | Suggested data |
|---|---|
| Kraków long weekend | 1–3 GB |
| One week, Kraków + Warsaw | 5 GB |
| Two weeks | 10 GB |
| Remote work | 20 GB+ |
Jakdojade (public transport), Bolt and Uber, maps and messaging are light. See how much data you need for travel.
Poland on a Central European trip
Combining Poland with Czechia, Slovakia, Germany or the Baltics? A Europe bundle may be simpler — check the country list. See the best eSIM for Slovakia, the best eSIM for Germany and the best eSIM for Europe.
Setting it up
- 1Confirm your phone supports eSIM and is unlocked on our compatibility checker.
- 2Install the eSIM over WiFi before you fly — iPhone or Android steps.
- 3On arrival, select the eSIM for mobile data and turn on data roaming for that line.
FAQ
How much does an eSIM for Poland cost? Wanderly Poland plans start at $2.99 for 1GB, with a median of about $0.80 per GB.
Is there mobile coverage in the Tatra mountains? In Zakopane and along valley trails, mostly yes. High routes can lose signal.
Does my EU phone plan work in Poland? Yes, under EU roaming rules, subject to fair use.
Is there signal in the Wieliczka Salt Mine? It is limited underground. Download tickets beforehand.
Which networks do travel eSIMs use in Poland? They connect automatically to Orange, Play, Plus or T-Mobile.