The Galaxy S21 Ultra is the top-of-the-line model and showcases some impressive camera hardware, which will appeal to those looking for the ultimate flexibility, no matter the cost. We've already ...

Apple iPhone 4S mobile was launched in October 2011. The phone comes with a 3.50-inch touchscreen display offering a resolution of 640x960 pixels at a pixel density of 326 pixels per inch (ppi). Apple ...