Airalo is the breadth-and-price option: 200+ destinations, plans from $4.50, buy exactly the gigabytes you need. Holafly is the simplicity option: pick a destination and duration, get unlimited data, don’t think about gigabytes — with the footnote that “unlimited” throttles after a daily trigger (measured under 1 Mbps in independent tests). Light user on a budget: Airalo. Heavy user who hates counting GB and accepts variable speeds: Holafly. (All figures their sites, 11 Sep 2026.)

The actual speed you’ll get, the throttle point, or what happens to money you didn’t use. Refunds in this category typically die at activation, and unused data expires everywhere. Those two gaps are why FairWave exists — real speed and throttle printed on every plan card before purchase, and 70% of unused value back as credit. We cover far fewer destinations than either; if your trip is on a corridor we serve, you get the honesty layer neither leader offers.