eSIM for Vietnam

Roameo's Vietnam eSIM connects to the country's main mobile networks, so you get the same 4G/5G towers locals use — dense across Hanoi, Da Nang, Hoi An and Ho Chi Minh City, and steady along the coastal Reunification Express corridor and the Mekong Delta towns. The thin spots are geographic rather than urban: the far-north mountains around Sapa and the Ha Giang loop, the outer karst inlets of Ha Long Bay and the Central Highlands back roads all drop in and out. Vietnam requires locally issued prepaid SIMs to be registered against a passport or ID; a travel eSIM is a roaming profile, so there is nothing to register and no queue to join. It's data-only — keep your home SIM in place for calls and texts — and tethering works, which matters on sleeper trains and long bus legs.