The strap version does allow for much more flexibility as the straps (and the rubber ring on the crown) can be changed.
The strap version is for sure a more sporty execution.
Romain also offers a platinum version of the C on the bracelet. It’s quite the watch; obviously serious weight on the wrist.
For the platinum version there is some customization considered for the dials. I’ve seen some really fantastic one of one platinum C models.