Game Boy

I thought this was interesting. Courtesy of the Wik. We're close now.

At the time of its release in 1989, the Atari Lynx, also known as the 'Handy', was also just being introduced to the market. This system featured color graphics, a backlit screen, and networking capabilities. Nevertheless, its release price of $179, substantial requirements of 6 AA batteries that would provide roughly four hours of gameplay (compared to 10-12 on the Game Boy), physical bulkiness, and other factors doomed it to a second-rate status.

Ouch.