Motorola Razr V3 (2004)

The thinnest phone in the world when it launched in 2004 at just 13.9mm, the Razr V3 became the best-selling clamshell phone in history with over 130 million units sold by 2006. Its aircraft-grade aluminum body, laser-etched keypad, and iconic flip design made it the ultimate status symbol of the pre-smartphone era.