- The classic can be used for up to an hour at a time, the pro almost constantly. After one hour, the classic is turned off (thermal protection)
- The Premium uses less energy but gives faster results than the Classic but has only two modes. It does have thermal protection with automatic cooling and makes less noise
- The pro is more robust and resistant to shock than the classic
- The pro has more power than the classic and the Premium
Both devices give the same results and can be considered extremely efficient!