An electronic device with a display, a touch-sensitive surface and one or more intensity sensors displays content. While a focus selector is over the content, the device detects a gesture on the touch-sensitive surface, the gesture including a first contact on the touch-sensitive surface and movement of the first contact across the touch-sensitive surface that corresponds to movement of the focus selector on the display. In response to detecting the gesture, when the contact has an intensity below a selection intensity threshold, the device scrolls the content on the display in accordance with the movement of the focus selector on the display without selecting the content. In response to detecting the gesture, when the contact has an intensity above the selection intensity threshold, the device selects at least a portion of the content in accordance with the movement of the focus selector over the content.