[celticninja]

Yup the game gear was technically better but the cost difference meant the Gameboy was more ubiquitous and so that's what sold.

Also for the switch, a lot of kids who had Gameboy's when they came out are now working and can afford a souped up handheld alongside their main console.

[mcphage]

Technically more powerful. Better… well, not with no battery life, it wasn’t.

[jmcgough]

Honestly I think the games library is why gameboy outsold game gear, and why nintendo continues to dominate the mobile console market

[hajile]

The two feed on each other.

Nintendo bootstraps this with with a cheap console and their great IP.

Once the console starts to outsell because of this, other game designers focus primarily on that console which drives sales and the cycle repeats.