Esimvietnam

Esimvietnam is a Vietnam-dedicated eSIM provider specializing in plans built on Viettel, one of Vietnam's two largest carriers. High-speed 4G LTE is the standard offering, covering urban centers and most highways, so you'll get dependable data in Hanoi, Ho Chi Minh City, and major tourist areas.

The provider's narrow focus on Vietnam means no international roaming or multi-country flexibility, but the Viettel partnership ensures solid network infrastructure. It's a straightforward choice if your entire trip stays within Vietnam and you want direct support from a local-focused operator.