Quick tips about Vietnam
Official Currency: Dồng (₫) or VND. It is best to use local currency as most places only accept cash. Credit cards are not as widely accepted but bring it along with you.
Electricity: The standard voltage is 110 /220 V. The power socket types A, C and D can be used in Vietnam. Check here to determine if you need to bring a travel adapter.
Data and Wifi: Vietnam has reliable cell phone services. SIM cards are affordable. Most places in Vietnam have wifi but if you want to make sure you are always connected, purchase a SIM card once you arrive in Vietnam.