Capacitive ECG sensing electronic displays and related methods are disclosed herein. An example electronic device disclosed herein includes a display screen including a first electrode and a second electrode and a processor operatively coupled to the display screen. The processor is to cause the display screen to operate in a first display screen mode to detect a touch input from a user on the display screen. The processor is to cause the display screen to switch from operating in the first display screen mode to operating in a second display screen mode. The first electrode and the second electrode are to generate signal data indicative of electrocardiogram data for the user when the display screen is operating in the second display screen mode.
