The New GT-435Xi has a couple interesting new features that im sure will be included on the new US models as well.
-Ka Narrow Mode
-Selectable Laser Modes
-X/K Filter Modes
-Ka Filter Modes
Check out there website to see it. Im guessing the Ka narrow mode will only sweep for 34.7 and 35.5. Band Segmentation with preset segments pretty much. The selectable laser modes looks like pulse rate segmentation. Hopefully they release the US models soon! im growing impatient