Will I have a signal on a ferry between Thai islands or to Penang?

For most ferry journeys in Asia, especially those connecting popular tourist spots like between Phuket and Koh Phi Phi in Thailand, or from the mainland to Penang in Malaysia, you can expect to have a stable signal for a significant portion of the trip. Ferries typically stay close enough to the coast or pass through areas with good network reach. While there might be brief moments of signal drop in deeper channels or far out at sea, EastESIM’s connection to robust local networks ensures you can usually browse, message, and even stream for much of your scenic voyage, letting you capture and share those stunning sea views.