Each provider evaluated on the same criteria: pricing, network coverage, throttling transparency, setup friction, and top-up flexibility. No affiliate links influencing rankings.
Five of the providers below are global; one — Travelsim Asia — is a regional specialist. Asia's fragmented carrier landscape created room for a regional player to genuinely outperform on price and reliability. Europe, by contrast, runs on unified EU roaming rules, so global providers compete on even footing there and no specialist has carved out a comparable edge.