Like about everyone else, I too use a Ram type holder, with the Ram mount to my Stem hole.
This mount is actually a knock-off I found on FleaBay, that also has the USB power port attached- making it a clean installation, never gets in my way, etc. The phone never comes loose either.
I then blue-tooth my phone/GPS directions, etc. into my helmet via a Senna Headset.
It's really nice to be able to send texts via 'Siri' and speaking it while riding.
Also nice when you get the text received tone- that I can ask Siri to 'read my last text', etc.
All hands free. Using the phone also, dialing via Siri commands, answering the phone, etc.
All hands free.
You can look at the screen in the mount for the map too if/when needed.