Speed, I believe the blue ZZ motor is a 1.0.
I just got some Huale clones and the box says 1.0, but the things fly. They are really hard to control. They almost always spin out on turning and turn very sharply on both cardboard and hardwood floors. It could be my bad driving
I tried the blue ZZ motor and it was much much slower, but much easier to control and I believe it lasted longer.
The red ZZ motor seemed to be very close, if not exactly, the same as the original motor in my clones. So, I'm guessing the clones came with a 2.2 motor instead of the 1.0 that the box says.