The Sony ILCE-QX1 is a mobile device mountable, Wi-Fi-controlled, lens-style compact camera manufactured by Sony and was announced on 3 September 2014. Part of the Sony α family, it is one of Sony's "Smart Lens" cameras, alongside the QX10, QX30 and QX100, that are designed to be specifically used with a smartphone. It has a 20.1 megapixel APS-C-size sensor, uses an interchangeable E-mount lens as its highlight feature, supports power zoom but no in-body image stabilization, and has a pop-up flash unlike its other QX siblings.

The E-mount is a lens mount designed by Sony for their NEX and ILCE series of camcorders and mirrorless cameras. The E-mount supplements Sony's α mount, allowing the company to develop more compact imaging devices while maintaining compatibility with 35mm sensors. E-mount achieves this by:Minimising mechanical complexity, removing mechanical aperture and focus drive. Shortening the flange focal distance to 18 mm compared with earlier offerings from Sony which used 44.5 mm. Reducing the radius of the flange.