If you want straight a Gameboy FPGA device with no stress, I hear the FunnyPlaying devices are great. Obviously no sleep, state state, ROM, GbStudio or music-composing support, like the Pocket, but it does what it says on the box.
Discussion
I’ll stick with my og gameboys lol they all still work fine
I've got a GB pocket and a Japanese only GameBoy Light and both are hard to play after seeing the Analogue Pocket's screen.