How to show mimic movie in Webhelp Mobile output

[TeamOnlineWriter]

I am trying to help a PO (product owner) in my company create a Webhelp Mobile online help for an app.

The idea is that in the online help you can watch a Mimic movie with output format HTML5. You can wiew the webhelp and movie in any webbrowser, no problem, but when we try to view it on an iPhone4s, you cannot watch the movie.

Guess my question is which output format to choose for my Mimic movie if I want to be able to watch it on a smartphone?

Thanks