Yeah that's how high-end handhelds vs consoles have been for the last 30 or so years.
Game Gear released around the time Genesis/SNES did but was on par with Master System/NES.
Sega Nomad released around the time PS1/Saturn/N64 did but was just a handheld Genesis.
PSP released 1-2 years before 360/PS3 but was a bit under DC/PS2.
Vita released 2 years before PS4/XBO but was under 360/PS3.
Switch released about halfway into PS4/XBO generation and is right in between 360/PS3 & PS4/XBO.
It seems like high end portable hardware is always like 7-8 years behind home consoles.
The Game Gear was pretty much a portable Master Master System, both had the same hardware inside.
There's 2 missing, though:
The PC Engine GT, which is a PC Engine/TurboGraphX 16 in Gameboy format.
And the Atari Lynx, which was graphically close to the Megadrive, and had the fastest CPU of the entire Gen (a Motorola 68K at 16Mhz; Megadrive has the same but at a slower clock speed.)
The Nintendo eShop rating Thread: http://gamrconnect.vgchartz.com/thread.php?id=237454
The Steam/GOG key gifting thread: https://gamrconnect.vgchartz.com/thread/242024/the-steamgog-key-gifting-thread/1/