The Q800 hexacopter frame is based on Q650 quadcopter frame there are many shared components between these two frames. This is a high quality carbon fiber hexacopter frame, designed to be large enough to use larger propellers. The arms can fold down for easy storage and transportation. Just like the Q650 frame this frame also inlcudes vibration dampers to reduce vibrations on your videos/photos should you decide to attach a camera gimbal.
The M450 quadcopter frame includes adustable landing gear so you can adjust the height depending on what you are carrying underneath. The weight fo the frame is about 350g excluding any electronics. The motor to motor distance is 450mm. The frame is made from high quality 1.6mm fibreglass plates
The FPV550 Quadcopter frame is specialty designed to be used as an FPV platform, with a very large central area to carry your FPV gear and a dedicated GoPro mount at the front.