Surface Duo

The Surface Duo is a discontinued dual-touchscreenAndroidsmartphone manufactured by Microsoft. Announced during a hardware-oriented event on October 2, 2019, and officially released on September 10, 2020, it is part of the Microsoft Surface series of touchscreen hardware devices, and the first device in the line that does not run Windows. It also marks Microsoft's first smartphone since the dissolution of Microsoft Mobile and the Windows Phone platform.

The Surface Duo received mixed reviews, with critics praising its design and battery life, but mixed on its multitasking features, software quality, and believing that its hardware (including its RAM, camera, and wireless network support) was outdated and underpowered for its class. A successor, the Surface Duo 2, was unveiled in September 2021. Microsoft released the final security update for the Surface Duo on September 10, 2023.