eSIM provider comparison: Airalo vs Holafly, Nomad, Ubigi

The travel eSIM market exploded in the last three years. Search 'eSIM Thailand' today and you get at least eight providers, each calling itself the number one. The reality is less glamorous: most are MVNOs reselling roaming agreements on the same backbones (Telefónica, Vodafone, Deutsche Telekom, Truphone/1GLOBAL). What actually differs is the commercial model — pay-per-GB versus 'unlimited' with hidden throttling — customer service when the eSIM won't activate at 11 PM on a Sunday, and coverage quality in the hard countries (China, Russia, parts of Southeast Asia, remote islands).

This pillar lines up eight head-to-head comparisons among the providers that dominate traveler forums in 2026: Airalo vs Holafly (the most-asked matchup), Airalo vs Nomad (the two with the biggest catalogs), Airalo vs Ubigi (Ubigi is the only provider with a direct China Mobile deal — it matters in mainland China), Airalo vs Yesim, Airalo vs Mobimatter, Airalo vs Tep, Saily vs Holafly (for travelers who don't want Airalo at all), and an Ubigi vs Airalo updated for 2026. Each comparison goes into specifics: USD/GB on comparable SKUs, activation flow, hotspot policy, English support quality, the mobile app, and — the thing nobody mentions — what happens when you ask for a refund.

Disclosure: we are Airalo affiliates. If you buy through our links, we earn a commission. That does not mean we always tell you Airalo wins. Holafly beats Airalo when you need genuinely uncapped data for a short stay (read the fine print). Ubigi beats Airalo in China and on some cruise routes. Nomad has 365-day plans Airalo doesn't sell. Inside each article we say where each one wins and where it loses. The goal is that you buy once and buy right — not that you return after a bad experience.