Apple uses product advertising for their new devices such as the new iPhone 5c. They use giant billboards and put them in places where people will notice them and will draw a lot of attention to their products. In this image and many other images of the new iPhone 5c they use pioneering advertising in this image to express that not only is this a new product but it comes in variety of colors for the customers to choose from.
Apple also uses various social media like Facebook and Twitter to help spread the word about their devices to their millions of fans. They also use their own website which promotes their latest products on the front pages of each website. But before they products are shown on their website Apple normally always holds a big press conference every year to let consumers know about their new products and the price ranges such as this one. With the new iPhone 5c they promoted this phone as a cheaper and more affordable product for people with lower income who value good products.