

I’d recommend that you get these ones, but you can pick them up plenty of places that aren’t Amazon too, just make certain you get the ones made by Gulikit, any others are probably as cheap as your originals and you’ll have to come back and replace them again in short order. The Gulikit ones use Hall Effect sensing rather than resistive contact pads that will eventually scrape down and break.
That kit at Amazon comes with all the tools to do the job and as the sticks are Hall Effect based, they’ll theoretically never drift unlike the ones that ship with Joy-Cons straight from Nintendo.
iFixIt has the process for doing the work: https://www.ifixit.com/Guide/Left+Joy-Con+Joystick+Replacement/113182 and https://www.ifixit.com/Guide/Right+Joy-Con+Joystick+Replacement/113185





Honestly the 1600x1440 screen on the Analogue Pocket and the ability to drive it is what you’re paying for when you buy it.
There’s not going to be a device that can drive all those pixels at less than the Analogue Pocket’s price for some time yet. Sure, none of the Game Boy systems used anywhere near that many pixels, but the fact that the Analogue Pocket screen is so ridiculously pixel dense it can emulate the original attributes of the OG screens from the devices that their FPGA is mimicking means you’re going to pay a premium for that (or any) device doing full hardware replication at that level.
Honestly seeing the Analogue Pocket emulate the way that the original DMG GameBoy screen pixels seemed to slightly hover over the background (slightly casting a shadow) was mind-blowing. You can’t get that unless your screen actually has those original pixel attributes or you’ve built a display with enough resolution to emulate what those characteristics looked like. See: https://cdn.arstechnica.net/wp-content/uploads/2021/12/PXL_20211213_155424062.jpg (Seriously, zoom in and notice the mimicry of the shadows under darker pixels, it’s just crazy to see in person.)