Cartier is a French brand, associated with jewellery and designer watches. It has been worn by royals and celebs. In 1902, King Edward II ordered 27 Tiaras from Cartier for his coronation night. Cartier is more famous for its jewellery, rather than its watches.
Prada is an Italian fashion luxury brand for both men and women. Prada manufactures ready-to-wear clothes, fashion accessories, shoes, perfumes and bags. Prada has also designed mobile phones with LG electronics. These mobiles are- LG Prada 3.0, LG Prada II (KF900), and LG Prada (KE850).