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

Vietnam's mobile network is served by three main operators: Viettel, Mobifone, and Vinaphone. 4G LTE coverage is strong across Hanoi, Ho Chi Minh City, Da Nang, and all major cities, with reliable connectivity along the coastal highway, main rail corridors, and popular tourist routes. Ha Long Bay has coverage on cruise boats and in Ha Long City, with signal varying on the water depending on distance from shore. Phu Quoc Island has reliable coverage in resort and town areas. The northern mountain provinces including Sapa, Ha Giang, and remote ethnic minority villages have coverage in main towns with signal weakening on trekking routes and in high mountain terrain. The Central Highlands and remote border areas near Laos and Cambodia may have more limited infrastructure. MobiSIM connects through supported Vietnamese networks to deliver reliable data across the country's main cities and tourist destinations.

Install your MobiSIM eSIM before landing at Noi Bai International Airport in Hanoi, Tan Son Nhat International Airport in Ho Chi Minh City, or Da Nang International Airport so you have data ready from customs clearance. Ride-hailing apps including Grab and Be are essential for navigating Vietnamese cities and both require live data, making your eSIM immediately practical from arrival. Keep your home SIM active for calls while MobiSIM handles your data. Download offline maps for the Ha Giang Loop motorcycle route, Sapa trekking trails, and any remote highland or jungle destinations before setting out from the nearest connected city. If you are motorbiking through the northern mountains, trekking to ethnic minority villages above Sapa, or visiting remote national parks, save all guesthouse contacts, route maps, and emergency details offline before departing Hanoi or Sa Pa town.