The K3 Touch is Compak's doserless model. This means that the grinds fall straight from the burrs into your portafilter. The advantage here is that there's no doser to trap old, stale grounds.
Also, it's much easier to grind into a container (if grinding for brewed coffee) with this machine than with the K3 Elite. The tradeoff is that your espresso grind will have more clumps than with a doser grinder, so you'll have to be more careful to properly distribute grinds in the portafilter basket.
The K3 Touch features:
*A doserless design, for easy cleaning and dual espresso and brewed coffee use
*An optional-use timer. The grinder has a manual mode and a timer to automatically control dosing. The timer isn't perfect (less dense beans will grind faster, so time doesn't equal dose), but it's a good start.
*0.6lb / 275g hopper capacity
*Commercial 58mm flat burr set, with a grinding rate of 11-15 pounds/hour
*Stepless, micrometrical grind adjustment
*Dimensions: 19.5"h x 6.5"w x 12"d
*Attractive design, comes in black or polished aluminum
*1 year warranty on parts and labor.
More images and an extended review of the K3 Touch