1 GB
Data
7 days
Validity
$10.05
$10.05/GB
Roamix eSIM St. Lucia 2026: Cheap Data Plans & Prices
Roamix eSIM St. Lucia 2026: plans and prices. How much does it cost? Rates by days and GB, the cheapest data package and unlimited options in one list.
Traveling to more than one country? Add it to the search.
Updated Nov 9, 2026
Roamix plans and prices for St. Lucia
Roamix for St. Lucia FAQ.
How much does the cheapest Roamix eSIM for St. Lucia cost?
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The cheapest Roamix eSIM for St. Lucia costs $5.85 and gives you unlimited data for 1 day. We recheck prices daily, so this price is up to date. You can buy it on the official Roamix site.
Does Roamix work in St. Lucia?
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Yes, Roamix works in St. Lucia on its St. Lucia-only plans and on its regional eSIMs. If your eSIM is installed but won't connect after you land, open your phone's settings and turn on data roaming for it. Your home SIM can stay as it is.
How much is a Roamix eSIM for St. Lucia for 7, 15 or 30 days?
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For St. Lucia alone, these are Roamix's lowest prices by trip length:
- 7 days: $10.05 for 1 GB
- 15 days: $23.20 for 3 GB
- 30 days: $24.30 for 3 GB
Does Roamix have an unlimited data eSIM for St. Lucia?
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Yes, Roamix has 39 unlimited plans for St. Lucia, up to $1594.75 for 365 days. A week without a data cap costs $35.00. On Roamix's unlimited plans, you pick how much full-speed data you get each day, from 500 MB to 10 GB on most country pages, and after that you stay online at a lower speed. Check the plan details before you buy.
What is Roamix, and is it good for St. Lucia?
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Roamix is an eSIM store for travelers, with plans covering 205 destinations. If you want prices for other countries and the full verdict, read the Roamix eSIM review.
How much does 1 GB of data cost with a Roamix eSIM in St. Lucia?
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With Roamix, 1 GB in St. Lucia can cost as little as $6.78, on the plan with 20 GB for 30 days.
Does Roamix have 5G in St. Lucia?
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Yes, 43 of Roamix's 88 plans for St. Lucia have 5G, so check the plan details before you buy. Your phone needs to support 5G too: on iPhone, that means an iPhone 12 or newer.
Can I use a Roamix eSIM as a mobile hotspot in St. Lucia?
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Yes, every Roamix plan, unlimited ones included, lets you share data through a hotspot at no extra fee, and it comes from the same data balance.
Does Roamix have a phone plan with a number for St. Lucia?
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No, Roamix's St. Lucia plans are data only, so your home number stays on your main SIM. You can still call and message people through WhatsApp or other apps.
Can I buy a Roamix eSIM before my trip to St. Lucia and use it later?
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Yes, you can buy it months ahead. On most plans, the days start when your phone first connects to a network in St. Lucia, and some start when you install the eSIM, so check the plan details before you buy.
Can I top up a Roamix eSIM?
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Yes, you can top up the same eSIM on the Roamix website under My eSIMs, with no new QR code. Most top-ups add data within your current plan's days, and some plans can't be topped up, so check the plan details before you buy.
Does Roamix have a regional eSIM that works in St. Lucia?
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Yes, Roamix has 43 regional plans that cover St. Lucia and other countries. These keep you online as you cross borders. But if you're only going to St. Lucia, a St. Lucia-only plan costs less. For example, 10 GB for 30 days is $71.05 on the St. Lucia eSIM and $91.55 on the regional one.