And at the time they were comparable to a flashlight in terms of complexity, not running AAA games with raytracing and a camera pipeline of untold complexity. It’s almost like having anything this complex working requires insane engineering and miniaturization, this is not due to “planned obsolescence”, especially if you take a look at the second hand market. No other brand has even remotely similar resell value.
User replaceable cell phone batteries used to be the norm, not the exception.