Travel adapter from Vietnam to Hong Kong
Adapter Required
Yes — coming from Vietnam, you will need a travel adapter for Hong Kong. Vietnam uses Type A/Type B/Type C plugs, and Hong Kong uses Type G, so the pin shapes will not fit any wall socket.
Vietnam (home)
Type A
Two flat parallel pins
Type B
Two flat pins + round ground
Type C
Two round pins (Europlug)
Hong Kong (destination)
Electrical specs
Vietnam
230 V
50 Hz
= Match
Hong Kong
230 V
50 Hz
More about plugs in Hong Kong
In Hong Kong, the standard power plug is Type G. The country runs on 230 volts at 50 Hz. That means every wall socket in Hong Kong is the same shape — Type G, and your plug needs to physically match the socket to fit.