The Sony Xperia M4 Aqua Dual is a smartphone that runs on the Android operating system. It has a 5-inch touch-screen display, measures 5.7 by 2.8 by 0.3 inches and weighs 135 Grams.The Xperia M4 Aqua has a 13-megapixel camera that can record high-definition video, a front-facing camera, and a music player. It also features a virtual QWERTY keyboard that’s useful for messaging and Web searches. This phone has WiFi, Bluetooth for wireless hands-free communication, DLNA, and GPS navigation capability. Web browsing, e-mail, and texting capabilities are also included. It can act as a mobile hotspot for WiFi-enabled devices.This Sony phone has a standard 3.5mm jack. It has 8GB of built-in memory, and supports memory cards of more than to 256GB.