Control of system zoom magnification using a rotatable input mechanism

A method, comprising:

• at an electronic device with a touch-sensitive display, a rotatable input mechanism, one or more processors, and memory:
• displaying content on the display, wherein the content includes a first edge and a second edge opposite the first edge;
• detecting a first user input;
• in response to detecting the first user input, displaying an enlarged view of the content that does not include the first edge;
• detecting a rotation of the rotatable input mechanism in a first rotation direction;
• and
• in response to detecting the rotation, translating the enlarged view of the content in a first translation direction on the display to display the first edge of the content.

An electronic device, comprising:

• a display;
• a rotatable input mechanism;
• one or more processors;
• a memory;
• and
• one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for:
• displaying content on the display, wherein the content includes a first edge and a second edge opposite the first edge;
• detecting a first user input;
• in response to detecting the first user input, displaying an enlarged view of the content that does not include the first edge;
• detecting a rotation of the rotatable input mechanism in a first rotation direction;
• and
• in response to detecting the rotation, translating the enlarged view of the content in a first translation direction on the display to display the first edge of the content.