Which country are you in?
Looking at the UK packages the creator combo comes with the 240w charger.
DJI list the charging times here:
https://support.dji.com/help/content?customId=en-us03400006769&spaceId=34&re=US&lang=en
I'm not 100% on...
That's certainly not the reason, firstly Samsung are able to offer stabilisation on their telephoto lenses and secondly DJI have superior stabilisation through the mechanical gimbal which already has no problems with telephoto focal lengths on...
I think DJI could easily implement such a zoom if they wanted do but likely don't due to the many compromises such a design forces, the periscope design they're using is nothing new and was on the go long before Samsung were even making phones...
It might not have been in the fluff that the marketing people wrote, but the information was always there in the specs.
It's not just with the Mavic 4 pro.
DJI usually don't tell what their sensor dimensions are.
I don't know why that's their...