I replace my batteries myself and relatively frequently, but still need a new phone every 3 to 4 years because things just change enough. There's a myriad of s

I replace my batteries myself and relatively frequently, but still need a new phone every 3 to 4 years because things just change enough. There's a myriad of small reasons, my last one was because my main payment app was taking 4s to create a damn QRCode while the casher and I stare at the blank page, and also for how hard it was to just answer calls from the notification screen as the phone was struggling at just multi-tasking. And that was on top of the expending shutter lag and and many newer OS functionalities just not properly working. And it's not the phone's fault per se, the most critical apps are really crappy. But there's also no incentives for them to be efficient, and they'll keep being crappier and crappier, and I'll probably need another phone in 4 or 5 years either way.