You can order a flowbee with a universal adapter usually.
Try googling for it in the Uk.

If you have to choose between the two,the robocut just doesn't do a good enough job at all whereas the Flowbee gives you nice blending with an even looking style and does not pull your hairs out like the robocut can at time.

The Robocut gives a mediocre cut and just cannot match the flowbee IMO.