Hideeho
Nah, the Orion is big. Now the hobby wing v3 is small...

Edit:
I got curious & looked it up.
Hobbywing v3 37.5x37x29.5 93g 7170mm area
Speedpassion reventon pro 35x35x20 no weight listed 5250mm area
Orion r10 pro 41.5x30.5x20.2 44g 5440.3mm area

I believe the hobbywing dimensions include a fan. Assuming it does, & assuming 9mm for the fan, the dimensions become:
37.5x37x20.5 5829mm area
Still the largest, but much more comparable

For comparison the tekin rs pro is
33x25.4x15.25 65.2g 3457.6mm area
Reventon r
33x33x19 4686mm area