The best eSIM for Poland depends on how much data you need, but for a typical trip eSIM Ahora offers plans from $0.96, activated by QR code in about 30 seconds with no roaming from your home carrier. A 3 GB, 30-day plan costs $2.59. You connect, with top-ups available and nationwide coverage. It includes EU roaming if you continue your trip across Europe. Compatible with iPhone XS or newer, Samsung Galaxy S21+ and Google Pixel 3+.
Full-speed data every day; after the daily cap the speed is reduced.
Full speed up to 500 MB/day, then 512 Kbps.
Every eSIM can be installed within 180 days of purchase. Plan validity starts when you first connect.
Your eSIM picks between these networks on its own. If you see bars and nothing loads, you can pick one by hand.
Your Poland eSIM runs on Play and Orange, and your phone picks whichever has the better signal. Other local networks won't carry your data: if you see signal bars and nothing loads, turn off automatic network selection (iPhone: Settings → Cellular → your eSIM → Network Selection; Android: Settings → Network & internet → SIMs → your eSIM) and pick Play or Orange by hand.
Poland has four main carriers: Orange Polska (largest market share), Play (Iliad subsidiary, broad 5G), T-Mobile Polska (Deutsche Telekom subsidiary), and Plus (P4, Cyfrowy Polsat group). Plugs are Type C and E (standard European with grounding pin, same as France), 230V — no adapter needed from the EU. 4G/5G coverage reaches Warsaw, Krakow, Wroclaw, Poznań, Gdańsk, Łódź, Katowice, and most of the PKP Intercity rail network. Poland is in the EU and Schengen — euros aren't local currency but widely accepted in tourist zones.
Warsaw Chopin (WAW), Krakow (KRK), and Gdańsk (GDN) airports offer limited free WiFi. The currency is the Polish złoty (PLN, ~4.3 PLN/EUR); PKO Bank Polski, Pekao, and mBank ATMs accept foreign cards with no commission up to 1500 PLN. Tips are 10%. The Warsaw Metro (2 lines) has 4G at all stations. BLIK is the local payment system (similar to Spanish Bizum). Bolt and Uber work in major cities. Beware airport currency exchange at WAW — rates can be 15-20% worse than at Kantor downtown.