answered about 22 months ago by grubby
If you're coming from Australia you might already have a phone you can use here. Quad band GSM phones will work anywhere in the world, and if you have a GSM (sim) phone in AUS then it should work here.
As for carriers, they're mostly priced about the same for pre-pay ( I don't know about contracts ). I use Mobiphone, and it costs you under 100,000 Dong to get set up.
The other main national carriers are Vinaphone and Viettel. Viettel is better in provincial areas as it's run by the army and has some coverage almost everywhere. Mobiphone has the best service in Hanoi, and Vina is slightly cheaper. That's how they pan out - there's not much to choose from in the GSM market.
Tom
answered about 18 months ago by Dratman
Echo pretty much the same thing everyone has said. I personally perfer viettel, just more reliable and better range. Your AUS phone will work in Vietnam, dual band 900/1800 GSM. However if you look to buy a phone, motorola's in partner with HT can get a cdma phone for 35$ or nokia most basic is 50$, GSM 900/1800.