Which global eSIM provider has the best coverage?
Airalo, Ubigi, Saily, and KnowRoaming all claim 200+ country coverage, making them the broadest options. However, coverage quality varies by destination. Airalo and Ubigi publish specific network partners for each country, allowing you to verify coverage depth. For transcontinental travel, MTX Connect's 130+ country network often provides stronger coverage density in covered destinations.
Mentioned Operators

Airalo
Global eSIM marketplace offering coverage in 200+ countries and regions. One of the largest eSIM providers with both regional and local data plans. Features competitive pricing and user-friendly app interface.
Ubigi
Global eSIM data connectivity by Transatel (NTT Group). Coverage in 200+ destinations. Offers both consumer and enterprise solutions with flexible data plans. Pre-installed on many devices including cars and tablets.
Saily
eSIM provider by Nord Security (creators of NordVPN). Offers global data plans in 150+ countries with focus on privacy and security. Features competitive pricing and integration with Nord ecosystem.
KnowRoaming
Global eSIM and roaming solutions provider with coverage in 200+ countries. Offers flexible data, voice, and SMS plans. Features automatic network switching for best connectivity.
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Most Reliable Global eSIM Options for Frequent International Travelers
What's the most reliable global eSIM for frequent travelers? Compare Airalo, Holafly, Saily, Nomad, Ubigi, MTX Connect & KnowRoaming—pricing from $1.99/GB.