The Samsung Galaxy A9 debuts the world's first quad camera to take your mobile photography to a whole new level. The phone has a 6.3-inch display with an on-screen home button so the whole front of the device is a display. The phone has Android on board and the large 128GB memory can be expanded when you need more space. When you want to snap a selfie you can use the fantastic 24-megapixel front camera. Each of the four cameras on the back handles a specific function to create amazing images. The rear camera has an 8-megapixel ultra wide lens, a telephoto 10-megapixel and a depth focus 5-megapixel one along with the main 24-megapixel camera.