Worth mentioning Vita is pretty finnicky. SD card adapters use the game card slot not the memory card slot and and so aren't the simpliest to configure and get going. Official cards that use the memory card slot are capped at 64GB and 64GB cards were only sold in Asia and have only gotten even more stupid expensive over time.
It's a decent handheld but Sony's paranoia really kneecapped it. And it doesn't quite have the ease of use as a lot of the retro handhelds available today.