I couldn't find where this has been asked and answered so I have a question for those who have a Blackvue system. I have been thinking about getting a camera for a while and I think I have decided on the Blackvue two channel system. I like the 4K capability of the 900X series but the 750X records 1080 at 60fps. What do you prefer? I can see a benefit of the 4K when viewed on a big TV screen but I also see the benefit of 60fps maybe looking smoother.