It's pronounced gah-jit, slang for any hardware device, usually small. Synonym of gadget. Smartphones, tablets, and portable game and music players are sometimes placed in the device category. A device acts just like a widget and often serves the same purpose.
The only difference is that the devices are proprietary, meaning they only work on certain devices, websites, or operating systems. These devices would come together to form a single graphic, a difficult example for the graphic problem in question. Both the device and its interface can be considered devices, since each depends on a separate application running on a smartphone. In the context of software, both devices and widgets can be considered applications, but they are not like traditional standalone programs.