Saint-Barthélemy eSIM

Your eSIM attaches to a partner network on the island, and neither supplier on this page names which one it uses. The harbor at Gustavia and the runway at Saint-Jean sit only a few minutes apart, so the busiest corners of St Barts are compact. Even so, no published source maps the signal on the hillside villas above Flamands or on the trail down to Colombier, and we do not promise coverage there. Villa wifi can carry photo backups and app updates while the eSIM handles maps on the road. St Barts is French, yet it sits outside the European Union, so an allowance that covers mainland France may not reach the island; check your contract for St Barts by name. Leave data roaming in St Barts switched off on your home line, because any traffic there is billed by your own carrier rather than by the plan you bought. Calls and texts to your usual number keep arriving, as cell phone service in St Barts on that line runs under your carrier's roaming terms. The plan ends at the shoreline, so a ferry or short flight to Saint Martin needs cover of its own or a regional plan that lists both islands. Sharing the connection with a laptop on the terrace depends on each supplier's hotspot rule, which sits in the plan detail.

To buy an eSIM for St Barts, start by checking that your phone accepts eSIM and is not locked to your carrier. Dial star hash 06 hash before packing, and an EID shown next to the IMEI means the handset can take the profile. Checkout gives you a QR code, and scanning it on home wifi installs the profile before you board the connecting hop from Saint Martin. Most plans start counting on their first connection to an island network, so buying weeks ahead does not eat into your stay. Once the wheels stop at Saint-Jean, turn the new line on, allow it to roam, and give it a minute to register. An eSIM card for St Barts is bound to the phone it was installed on, so a handset dropped on the rocks at Colombier cannot pass it to a borrowed one. A St Barts SIM card bought in person on the island is the way to hold a local number, which no data only travel plan includes. That makes a St Barts prepaid SIM card worth considering mainly for a long seasonal stay, when a local number makes everyday arrangements easier. An eSIM in St Barts also leaves your home SIM in place, so bank codes keep arriving on your usual number.