Smartphones with user replaceable batteries are few and far in between.
Apple does not offer one. Can you point to a Samsung one? Xiaomi? OPPO? vivo? Any other brands?
Are there tablets with user replaceable batteries? Apple never had one. Samsung? Amazon? Huawei? Lenovo? Any other brands?
How about wireless earphones?
Last Mac laptop that had it was over a decade ago.
Remember when LG decided to stop making phones? They were reasonably good at it, but they couldn't find enough customers to make it worth while. You'd think if there was a huge number of customers who really valued replaceable batteries that LG would have done that to stay in the game.
But here's the thing: customers do value replaceable batteries, but
they value other things more.
Engineering is the art of tradeoffs. You can't have everything you want, so you need to figure out how to find a combination that works. Size, reliability, performance, battery life, features... Serviceability. When you prioritize one over the others, the others suffer. Nature of the business.
Companies spend their energy figuring out what people most want to gain a competitive advantage. This leads to the best products for people. When people value size and reliability over serviceability, we get smaller phones that can fall in a toilet and live, but that we need to take for service every 5 years or whatever if we want a new battery (I typically keep my phones that long or longer without needing to replace the battery).
So, if you ask consumers if they'd like cheaply and easily replaceable batteries, the answer will be yes. I'd answer yes. I'd like to be able to do that. If you ask consumers what they're willing to sacrifice to gain that capability, things start to take a different shape.
The problem with these forums is things like this:
Actually I'm wondering why they don't just make the stems as a screw on.
Do you notice the word "just" in there? Apple has thousands of engineers working on products like this for a decade but forum people, for some reason, think they know the easy fix. "Guys, guys, guys... You just have to give it a twist!".
And this:
Unscrew the backplate then insert fresh new batter via friction.
Ah, friction! Brilliant! Who cares about wear and contact resistance in a product that sees continuous shock and vibration and spends enormous design effort to squeeze out every Joule from the battery. And screws! No chance of stripping those little guys, over torquing, under torquing, or compromising an environmental seal anywhere.
So many people here think they know the answer to questions that these massive organizations have been studying for years. So many others think this is some major conspiracy. People are convincing themselves that there are no tradeoffs involved because they simply don't understand how things are designed and built, especially in quantities of hundreds of millions.
If e-waste is an issue, tax e-waste. Tax it high enough to incentivize people to create less of it and to mitigate what they do create. Governments should manage and regulate negative externalities like pollution. They shouldn't mandate engineering design decisions because that's the path to unintended consequences. This and the USB-C nonsense are mandating engineering decisions and we will be worse off for it.