Frequently asked questions
What is an eSIM and how does it work?+
An eSIM (embedded SIM) is a digital SIM built into your phone. Instead of inserting a physical card, you download a plan directly onto your device. Once installed, your phone connects to a local network at your destination — no SIM swap needed. Most phones made after 2019 support eSIM.
Is my phone eSIM compatible?+
Most modern smartphones support eSIM, including iPhone XS and newer, Samsung Galaxy S20+, and Google Pixel 3 and newer. On iPhone go to Settings → General → About and look for an EID number. Your phone must also be unlocked.
How do I install an eSIM?+
After purchasing you usually receive a QR code or in-app install instructions. Install the eSIM on Wi-Fi before you travel, then activate the data line when you arrive.
How much data do I need?+
Light users need about 1–2GB per week. Moderate users often need 3–5GB per week. Heavy users who stream, hotspot, or work remotely should consider 10GB+ or unlimited options.
How do price drop alerts work?+
Click “Alert me if this drops” on a plan card and enter your email. We will notify you when a better match or price drop is available for that provider/destination.
How does Ternroam make money?+
Ternroam may earn an affiliate commission when you purchase through links on this site — at no additional cost to you. Pricing and final plan details are confirmed on the provider’s website.