Originally Posted by
bocastephen
Has anyone seen one of the outbound travel SIMs from HK that still provide data services in HK as well as the target country - for example, do any of the HK vendors sell a travel SIM for Japan that still includes working data in HK?
They are available. However, in my experience, a dedicated HK SIM and a dedicated JP SIM is cheaper than the 1 SIM solutions.
Pricing at Duck St, SSP HK (beginning of April 2018):
14 days 8G, HK only, $50 or $80 for two.
14 days 6G JP only $65
30 days EAsia 5G $198, you need to read Thai for full instructions.