I'm going for a short vacation with my wife tomorrow. We're going to Hanoi city and Halong Bay in Vietnam. I've been doing some research on getting a prepaid service for mobile communications in Vietnam and so far have found three providers, Viettel, Vietnamobile and Mobifone.
I don't care much about the calls and SMS service as I only need the data service. And it is a no brainer to get a prepaid sim card rather than go on international roaming using my local provider. I would spend at least 20x more if I do so. So here is what I have found so far.
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