11 Best International Roaming Plans Compared for 2025

6. Holafly eSIM (global data-only eSIM)

Holafly sells data‑only eSIMs that promise easy activation and straightforward validity windows—buy online, scan a QR code, and the eSIM is ready without visiting a store. They offer country-specific and global packages, with some unlimited data options for certain countries or shorter durations. Holafly appeals to travelers who need heavy data for navigation, video calls, or streaming without the roaming premiums of a domestic carrier. The major benefits are simplicity and no change to your primary number for occasional apps; the downside is that voice calls typically require apps like WhatsApp, and pricing per GB can be higher than local SIMs for long stays. For Indian travelers visiting multiple countries, Holafly avoids the need to switch physical SIMs at each border. Pros: fast activation, good for data-heavy short trips. Cons: voice service is usually app-dependent, and can be pricier for long visits. Best for: tourists and remote workers who want instant data and little setup fuss.