Frequently Asked Questions
About eSIMs forVietnam

• What’s the best time to visit Vietnam?

  The best time is March to April and September to November—pleasant weather, fewer tourists, and postcard-worthy views from Halong Bay to Da Nang.

• Do I need an eSIM or SIM for Vietnam?

  Yes. Especially in cities like Hanoi and Ho Chi Minh, Commbitz eSIM helps you stay online instantly after landing—no store-hopping, no language barriers.

• Is public WiFi good in Vietnam?

  WiFi is available in most cafes and hotels, but it’s not always secure. For Google Maps, Grab, or booking trains, your own data connection is safer and faster.

• Will my eSIM work in different cities across Vietnam?

  Absolutely! Whether you’re trekking in Sapa or enjoying a bánh mì in Hoi An, Commbitz eSIM keeps you connected throughout the country.

• What are the must-visit places in Vietnam?

  🚤 Halong Bay – scenic cruises & limestone cliffs

  🏯 Hoi An – lantern-lit streets & culture

  🛵 Ho Chi Minh City – history & energy

  🧳 Sapa & Da Nang – mountains to beach Don’t miss Vietnamese iced coffee—it’s a lifestyle.