An electronic device displays a user interface that includes a first display region and a second display region. The device detects a first intensity of a touch input at a first location on a touch-sensitive surface that corresponds to the first display region; detects a movement of the touch input to a second location on the touch-sensitive surface that corresponds to the second display region; after detecting the movement, detects a second intensity of the touch input at the second location; and, in response, in accordance with a determination that the first intensity does not satisfy a first intensity threshold, processes the second intensity using one or more intensity thresholds associated with the second display region; and, in accordance with a determination that the first intensity satisfies the first intensity threshold, processes the second intensity using one or more intensity thresholds associated with the first display region.