I agree.
I do the same upgrade cycle - phones is usually 4 years as I rather replace it with a new one vs replacing the battery for 1 more year.
Battery technology needs to advance and have a radical shift - not just in mobile devices but in general. It's not sustainable and it's underwhelming in terms of performance.
Imagine the day when an iPhone will last like a Nokia did in the past... 5 days.
With these M chips and low consumption even Macs and IPads would have insane autonomy for several days.
And cars should follow - as nobody wants to carry a ton of extra weight for a barely recyclable battery with the scarce Lithium availability on the planet.
Yeah... I went overboard and started dreaming with my eyes open![]()
If you actually use your current iPhone like you did with Nokia, I would not be surprised if it last 3 to 4 days. We do so much more on our smartphone compared to Nokia 2G era where we only send SMS and talk.
I could see the roadmap of Display, antenna, modem, SoC making the iPhone 25% more efficient in the next few years. If we could get a next gen battery with 50% increase in capacity, all of a sudden 75 to 150 gives you double the battery life. Along with Double the cycles count so your phone would last 5-6 years without changing battery. Or enough for you to use your iPhone until iOS support drops. I think this is what will happen sometime between 2025 - 2030. Which again if everybody want one would trigger another upgrade cycle, that is 200M iPhone per yer for another 5 years.