What's the difference between a ceramic spray coating and a true ceramic coating?

Spray coatings like Turtle Wax Hybrid Solutions, Cerakote Platinum, and Chemical Guys HydroCharge wipe on in minutes and typically last weeks to several months. True coatings like CARPRO CQUARTZ UK 3.0 and GYEON MOHS use quartz/SiO2 nanotechnology that bonds to the clear coat for multiple years, but require careful surface prep and a controlled environment to apply correctly.