Lumbus does not provide a truly unlimited data eSIM for Saint Barthélemy. The plans that carry the name “St. Barthélemy Unlimited” actually give 3GB of high‑speed data each day; after that daily allowance, the speed is throttled to 1 Mbps (the provider notes confirm a 1 Mbps limit).
Customers looking for substantial data without a daily ceiling can choose Lumbus fixed data plans such as the 20 GB plan for 30 days, the 10 GB plan for 30 days, the 5 GB plan for 30 days, or the 3 GB plan for 30 days, all of which offer 5G coverage and tethering at the listed price.