The Grand has a spacious 5-inch LCD display that's responsive and bright. However, I did notice that colors like blue and green appeared more saturated than other hues. As you can see, it runs on Android Jelly Bean.
To use Multi Window, turn it on in the notifications bar and tap on the arrow that'll appear on the side of your screen. A row of common apps will crop up, like the browser, your photo gallery, and Gmail. You can then access your current app and launch another one and view both at the same time.
Hardware specs consist of a 1.2GHz dual-core processor and a 2,100mAh battery. On the back, you'll get an 8-megapixel camera capable of shooting 1080p video, and on the front there is a 2-megapixel camera.