Trinidad and Tobago has two main mobile operators: Digicel Trinidad and Tobago and TSTT (bmobile). Both operate 4G LTE networks across the twin islands. HelloRoam eSIMs connect via Digicel or TSTT partner networks.
Trinidad has solid 4G coverage in Port of Spain, San Fernando, Chaguanas, and along the main highway corridors. The west coast and the East-West Corridor have strong signal. Northern Range forest areas on the mountain ridge have weaker signal off the main roads. The Caroni Swamp bird sanctuary area has some coverage near the causeway approach.
Tobago is smaller and well covered overall. Crown Point Airport, Scarborough town, Pigeon Point Beach, Buccoo Reef, and the main west coast resort strip all have 4G. The northeast of Tobago, including Charlotteville and Speyside, has improving but lighter coverage. Open water between Trinidad and Tobago loses signal during the inter-island ferry crossing.