Abstract: An electronic device displays a messaging user interface on the display, the messaging user interface including: a conversation transcript of a messaging session between a user of the electronic device and at least one other user, and a message-input area that includes a first message input. While displaying the messaging user interface, the device detects a first input by a first contact at a location on the touch-sensitive surface that corresponds to a location in the message-input area; in response to detecting the first input by the first contact, the device display an impact selection interface that includes a plurality of impact effect options.

Abstract: An electronic device with a touch-sensitive surface, a display, and one or more sensors to detect intensity of contacts: displays user interface objects in a first user interface; detects an input by a contact while a focus selector is over a first user interface object; if the input meets selection criteria, displays a second user interface; if a first portion of the input meets preview criteria, displays a preview area overlaid on at least some of the user interface objects, wherein the preview area includes a reduced scale representation of the second user interface; if a second portion of the input meets user-interface-replacement criteria, replaces display of the first user interface and the overlaid preview area with display of the second user interface; and, if the second portion of the input meets preview-area-disappearance criteria, ceases to display the preview area and displays the first user interface after the input ends.

Abstract: An electronic device with a touch-sensitive surface, a display, and one or more sensors to detect intensity of contacts: displays a plurality of user interface objects in a first user interface; detects a contact while a focus selector is at a location of a first user interface object; and, while the focus selector is at the location of the first user interface object: detects an increase in a characteristic intensity of the contact to a first intensity threshold; in response, visually obscures the plurality of user interface objects, other than the first user interface object, while maintaining display of the first user interface object; detects that the characteristic intensity of the contact continues to increase above the first intensity threshold; and, in response, dynamically increases the amount of visual obscuring of the plurality of user interface objects, other than the first user interface object.

Abstract: An electronic device displays at least one device initialization screen. After displaying the at least one device initialization screen, the electronic device displays an instruction screen instructing a user to pair the external device with the electronic device. The electronic device sends first data via wireless communication, displays a pattern comprising identifying information of the electronic device, and receives second data indicating that the external device and the electronic device have been paired using the first data. After receiving the second data, the electronic device provides an aural or haptic indication that the electronic device and the external device have been paired. In some examples, the electronic device is a wearable electronic device and the external device is a smartphone. Pairing the electronic device and the external device may allow the devices to exchange information and operate interactively with one another.

Abstract: An electronic device with a camera invokes a wireless communications pairing mode for pairing the electronic device with an external device. The electronic device obtains an image via the camera. The image contains a pattern displayed on a display screen of the external device, and the pattern comprises identifying information of the external device. The electronic device receives data from the external device, determines whether the received data corresponds with the identifying information, and, in response to a determination that the received data corresponds with the identifying information, registers the external device as a paired device. In some examples, the electronic device is a smartphone and the external device is a wearable electronic device. Pairing the electronic device and the external device may allow the devices to exchange information and operate interactively with one another.