4S eSIM eSIM Data Plans for Luxembourg

4S eSIM does not provide a truly unlimited data eSIM for Luxembourg. All of its Luxembourg‑specific plans are capped at a fixed amount of high‑speed data; for example, the 3GB and 5GB “Unlimited” plans give 3GB and 5GB of data per day over 1‑7 days, after which the speed drops to 1000kbps. Plans marked “Unlimited” in the name still have a data cap and reduced speed once the cap is reached.

Instead, 4S eSIM offers fixed data plans that can be more cost‑effective for typical travelers. For instance, a 50GB plan for 5 days costs $20.01, and a 30GB plan for 15 days is available for $24.42. These plans provide a large, flat data allowance without the speed throttling that follows the limits on the “Unlimited”‐named plans.

4S eSIM does not provide a Luxembourg eSIM with a phone number or SMS capability. Only data‑only plans are available from this provider for Luxembourg. Travelers who need to communicate can use popular VoIP apps such as WhatsApp, Telegram, and iMessage over the data connection. However, some destinations may block or restrict access to specific apps or VoIP services, so it is advisable to verify that the apps you rely on are accessible in Luxembourg before making a purchase.

4S eSIM has 54 single‑country data plans available for Luxembourg and an additional 108 multi‑country plans that include Luxembourg. The plans vary from just $1.42 to roughly $195.83, with data caps ranging from 714 MB up to 50 GB. Some options provide a fixed data amount, while others apply a daily data cap or reduced speed for the last 1 000 Mbit.