Device, method, and graphical user interface for adjusting content selection

An electronic device with a touch-sensitive display displays a user interface with content. The device detects a gesture on the touch-sensitive display, the gesture including a first contact over the content on the touch-sensitive display and movement of the first contact across the touch-sensitive display. In response to detecting the gesture, when the contact does not meet selection criteria, the device scrolls the content on the display in accordance with the movement of the contact on the display without selecting the content. When the contact meets the selection criteria, the device selects at least a portion of the content in accordance with the movement of the contact.