The Segway is a self-balancing, two-wheeled personal vehicle first introduced by inventor Dean Kamen in 2001. Though initially met with immense public hype and predictions of revolutionary change, the device faced challenges regarding its high cost and a difficult learning curve. In 2015, the company was purchased by its competitor Ninebot, a robotics startup based in China. Despite its utility in tourism and security, the original personal transporter model was eventually discontinued in 2020 due to low sales. Today, the brand name continues through a diverse lineup of electric scooters, bikes, and all-terrain vehicles.