Frisco Theme for BuddyPress – https://wordpress.org/extend/themes/frisco-for-buddypress
Or use any responsive WP theme and install+activate the BP Template Pack plugin, then go through BP compatibility process. There’s a list of “template-packed” WP themes https://codex.buddypress.org/theme-development/wordpress-to-buddypress-theme/#template-packed-wordpress-themes for reference on how to go about it.
Just to add, the default BuddyPress theme itself is responsive now. So, you can get responsive out of the box.
Many of those other themes do a bit more ‘responsive’ the default is a bit minimal about what it does but it was a conversion to responsive not done ground up.
If your after themes, give Oxwall a try
@newpress We’ve discussed you pushing this app newpress and I stated that it wasn’t really appropriate on this support forum. On this thread the OP is asking about BP themes and others have responded with some ideas, Oxwall is NOT a BP theme it is not even related to BP or WP so please stop mentioning it on this forum, thanks.
We’ve put together a nice list of responsive BuddyPress themes here 
http://wpmu.org/10-responsive-buddypress-themes/
I have tested just about every “Premium” BP theme (including the one in your link) and I can tell you there is only one responsive (or otherwise) theme I would ever use…
http://testbp.org/
PS
Have not tested Frisco, but it looks promising.
