Hong Kong has a sophisticated telecommunications system and one of the highest rates of telephone density in the world. Coverage is very good all over Hong Kong. There is even a signal in underground stations or tunnels.
The market is so open that there is a wide range of service provider. Therefore it is always good to compare the latest plans and promotions of each providers in order to get the best deal.
Here is a list of mobile phone network operating companies:

http://www.smartone-vodafone.com

