Best eSIM for Warsaw in 2026
— Ranked by Real Performance

Warsaw is one of Central Europe's most connected cities, with T-Mobile Poland and Orange Poland jointly covering over 99% of the urban area on LTE and a rapidly expanding 5G footprint that reached 85% population coverage by end-2023. It suits business travellers, digital nomads, and city-break visitors equally well — data speeds in the centre regularly exceed 100 Mbps download on 5G. One non-obvious detail: most budget eSIM providers roam onto T-Mobile Poland's network via a shared MVNO wholesale agreement rather than Orange, which matters because T-Mobile's 5G in Warsaw runs on the n78 band (3.5 GHz) and delivers consistently faster peak speeds inside modern buildings like the Warsaw Spire district than Orange's current 5G rollout.

• →T-Mobile Poland and Orange Poland both hold 5G licences in Warsaw; T-Mobile's n78 (3.5 GHz) deployment covers the central business district with median download speeds of 120–180 Mbps as of Q1 2024, versus Orange's 5G which still relies heavily on DSS (Dynamic Spectrum Sharing) in outer districts, reducing real-world 5G gains.
• →Warsaw's LTE network reaches 99.4% population coverage (GSMA data), making even edge-of-city locations like Wilanów and Ursus reliably 4G-connected.
• →Play Poland, the third major network, is used as a fallback carrier by several eSIM MVNOs in Poland — its urban throughput averages 10–15% lower than T-Mobile in central Warsaw due to more congested 1800 MHz spectrum allocation.
• →Poland mandates data roaming via EU roaming regulations, meaning any EU-based eSIM provider must offer at least local retail-equivalent pricing — a regulatory protection that most provider marketing pages never explicitly mention to travellers.