There are several differences. 1) Apple has massive platform benefits. phoneOS, macOS, watchOS, tvOS devices all work really well together. If you buy into 1 part of the ecosystem, the incremental value of switching another device to an Apple device is really high. 2) The high end in cars and phones are 2 orders of magnitude different. Spending a few hundred dollars more to buy into the high end for a smartphone is a stretch many consumers can make. Spending a few tens of thousands of dollars more to buy into the car high end is not a stretch many consumers can make. Heck, you could buy a new high end smartphone with the amount you pay every 2 months for a shitty car. 3) Apple's devices are the best in class in nearly every measure, especially build quality. Tesla is still far behind its competitors in build quality.

This is not an argument against Tesla. It's an argument cautioning against comparing Tesla to Apple. Heck, it's an argument cautioning comparing any company today or in the history of companies to Apple.