Papeete (Tahiti): As the capital, Papeete and the surrounding urban area including Faa'a International Airport offer the most reliable 4G/LTE coverage in French Polynesia. Connectivity is strong along the waterfront, in commercial districts, and along the island's main coastal road. However, the signal can weaken significantly when travelling into the mountainous, volcanic interior or inside some larger concrete buildings.

Bora Bora: You can expect excellent 4G connectivity in the main town of Vaitape and across the luxury resorts situated on the surrounding motus (islets). The network is optimized for these key tourist areas. Service may become less consistent if you venture into the lush, hilly interior of the main island or travel by boat to more remote parts of the lagoon.

Moorea: A strong 4G signal is available along the entire coastal road that circles the island, connecting the main villages, hotels, and the ferry terminal. Service can become spotty or unavailable once you move into the deep agricultural valleys like Opunohu Valley or go on hiking trails in the mountains. The ferry connection to Tahiti may also have brief signal dropouts mid-channel.

Rangiroa: On this vast atoll, mobile service is concentrated in the main villages of Avatoru and Tiputa. While you can get a functional signal for calls and data in these populated areas, expect connectivity to disappear entirely once you are on a boat for diving excursions or visiting remote "blue lagoon" areas within the atoll.

Raiatea: The main town of Uturoa and its port area have dependable 4G coverage, which extends reliably along the coastal ring road. This makes staying connected easy in most populated areas and yachting marinas. Similar to other high islands, venturing inland to the central Temehani plateau or into secluded bays will likely result in a loss of signal.

Island Coastal Roads: On the main island of Tahiti, the coastal "Route de Ceinture" (Belt Road) provides generally consistent 4G/LTE signal in and around Papeete and other major towns. Service can become intermittent or downgrade to 3G in more remote sections, especially on the southern peninsula of Tahiti Iti. A similar pattern applies to the main roads on Moorea and Bora Bora, with strong coverage near resorts and villages but potential gaps in between.

Inter-Island Ferries and Flights: Cellular service is unavailable over open water. When traveling by ferry between islands, such as the Tahiti-Moorea route, expect to lose signal within a few kilometers of the coast. Service will not resume until you approach your destination island. There is no connectivity on inter-island flights, with signal only accessible on the ground at the airports.

Volcanic Island Interiors: The mountainous and rugged interiors of the high islands like Tahiti, Moorea, Nuku Hiva, and Raiatea are major dead zones with virtually no cellular coverage. Any 4x4 tours, hikes into valleys like Tahiti's Papenoo, or treks to interior waterfalls will be completely offline. Always download maps and information beforehand.

Remote Archipelagos: Coverage differs significantly across French Polynesia. While the Society Islands (Tahiti, Bora Bora) have the most developed networks, service in outer archipelagos like the Tuamotus, Gambier, or Marquesas Islands is often restricted to the single main village on an inhabited island. Data speeds may be limited to 3G, and many smaller atolls or motus have no service whatsoever.