How to Install an eSIM
A step-by-step guide for iOS and Android.
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Based on our 2025 reviews, Saily is the best overall for ease of use and security. Airalo is best for global coverage, and Holafly is best for unlimited data.
Yes, significantly. Carrier daily roaming passes often cost $10/day. An eSIM can cost as little as $4 for an entire week of data.
No. Most modern phones allow you to keep your physical SIM active (for calls/texts) while using the eSIM for data. Just ensure "Data Roaming" is turned OFF for your primary SIM.
Most iPhones released after 2018 (iPhone XR/XS and newer) and many modern Androids (Samsung S20+, Pixel 4+) are compatible. Use our Compatibility Checker to be sure.