eSIMEsimtravWatch outAtlas research
Onlineyesterday
Reported to fall back to 3G outside Hanoi. Fine as a city backup, weak if you are crossing the country.
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Vietnam
4 routes · 5 SIM notes · 2 coworking cities
Routes
🎒Banana Pancake TrailBangkok → Chiang Mai → Luang Prabang → Hanoi → Hoi An → HCMC → Phnom Penh → Siem Reap🏍️Ho Chi Minh Trail / Vietnam N–SHanoi → Ha Giang → Phong Nha → Hue → Hoi An → Da Lat → HCMC🚲Mekong cycling corridorYunnan → Luang Prabang → Vientiane → Phnom Penh → Mekong Delta🧭Southeast Asia mega-loopBangkok → Laos → Vietnam → Cambodia → Malaysia → Singapore → Bangkok
eSIM / SIM
1 warningeSIMByteSIMAtlas research
ViettelOnline1y ago
July 2025 note: same prepaid Viettel line you would buy at the airport, but as an eSIM. Ping under 50 ms and fast in cities.
eSIMeSIMXAtlas research
5 GB/day / 30 days$9.80Onlineyesterday
Daily-cap long stay pack. Good when you will be in Vietnam for weeks and do not want a shop queue on arrival.
eSIMUbigiAtlas research
10 GB / 7 days$10.90Onlineyesterday
Short Vietnam hop. Pair with a Viettel/Mobifone tourist SIM if you leave the main cities.
LocalViettel / Mobifone / VinaphoneAtlas research
Airportpassport neededyesterday
Airport and city shops still sell Viettel, Mobifone and Vinaphone tourist SIMs. Viettel is the usual overland choice for coverage outside Hanoi and HCMC.
Coworking
Ho Chi Minh City
Usable coworking scene. The Workshop Coffee in D1 is a laptop-friendly cafe.
Dreamplex · The Hive Thao Dien · Toong · The Workshop Coffee
Hanoi
Cheapest on the list, but 8 Mbps is the weakest internet here. Video calls are risky.
Toong · CoGo · Blackbird · All Day Coffee