A wearable electronic apparatus includes a touch panel and a processor. The touch panel is configured for providing a touch interface and detecting a swipe gesture across the touch interface. The touch interface has a first portion and a second portion. The processor is operatively coupled to the touch panel. The processor is adapted to assign a first border layout and a second border layout for discriminating between a vertical swipe and a horizontal swipe. The first border layout is different from the second border layout. The processor is further adapted to recognize whether an initial touchdown point of the swipe gesture is located in the first portion or the second portion of the touch interface.