Smartphonemirroring

Smartphonemirroring refers to the transmission of a smartphone's screen content and audio output to a separate display or device in real time, effectively duplicating or extending the phone's interface.

Most methods are wireless using display protocols such as Miracast (Wi-Fi Direct), Apple AirPlay, and Google Cast, sometimes under vendor-specific names (for example, Samsung Smart View). Wired methods include USB-C to HDMI adapters that connect the device directly to a monitor or TV.

Common use cases include presenting slides or demonstrations, watching videos or photos on a larger screen, gaming, and collaborative work where a phone acts as a source while others view.

Limitations include latency, variable resolution or frame rate, and dependence on network quality for wireless connections; security and privacy concerns, such as exposure of notifications; energy consumption; and occasional compatibility issues between devices and platforms.

History and standards: smartphonemirroring matured in the 2010s with protocols such as Miracast (Wi-Fi Direct), AirPlay (Apple), and Google Cast (Chromecast); cross-platform support has expanded, but feature parity and performance can vary by device.