eSIM for Réunion — Instant 4G/5G Data Plans

Réunion's mobile network is served by operators including Orange Réunion, SFR Réunion, and Free Réunion. As a French overseas department, Réunion benefits from French telecommunications investment and 4G LTE coverage is available across Saint-Denis, Saint-Pierre, Saint-Gilles-les-Bains, and the main coastal and urban areas. The volcanic cirques of Mafate, Cilaos, and Salazie present significant coverage challenges due to their dramatic terrain. Mafate, accessible only on foot or by helicopter, has extremely limited connectivity in its remote villages. Cilaos and Salazie have basic coverage in their main town centres, with signal weakening quickly on higher hiking routes and volcanic terrain near Piton de la Fournaise. MobiSIM connects through supported local networks to deliver reliable data across Réunion's coastal and main populated areas.

Activate your MobiSIM eSIM before landing at Roland Garros Airport in Saint-Denis so you are connected from arrival. Download offline maps for all three cirques, Piton de la Fournaise volcano trails, and the GR R1 and GR R2 hiking routes before setting out from coastal towns, as the interior volcanic and cirque terrain has very limited signal. Keep your home SIM active for calls while MobiSIM handles your data along the coast. Réunion is one of the world's great hiking destinations and the Cirque de Mafate in particular must be treated as completely offline, with all gîte contacts, trail maps, and emergency numbers saved before entering the cirque on foot. If you are volcano watching at Piton de la Fournaise during an active eruption period, save all Observatory Volcanologique du Piton de la Fournaise alert information and access road details offline before departing the Plaine des Cafres.