Comparing the "ICEVs vs BEVs" case to "mobile phones vs smartphones" case is not a good comparison.
I'll tell you why: smartphone is actually a tiny computer with mobile phone properties. So, every computer to operate well needs an excellent OS. And there's where Apple advantage was. Being a computer company Apple has it's own OS & computer-tech know-how. So, when it came to making small computers with mobile phone properties Apple had all the know how: they knew how to make an OS, and they knew how to make a computer. The rivals had none of that. Microsoft had OS expertise but no hardware one; while Nokia, Ericsson & Motorola knew how to make hardware but they lack a proper OS know-how to make a capable computer out of a mobile phone. And that's why Apple succeeded. They had all the needed know-how, they had relationship with suppliers (displays, cases, microchips, processors etc). No other mobile phone, computer or OS maker had that in their hands. Only Apple had. With also having portable music player expertise Apple also had the know-how how to pack lots of hardware into a small package. Not to mention they had excellent UX team so they offered a great UMI. Bingo!
Not to mention smartphone life-cycle is significantly shorten than a life-cycle of a more complex product like a automobile.
So, when it comes to Tesla ... All they have, others have too. All the major carmakers know how to make cars, how to make EVs, and they have relationship with suppliers. What they still lack - but that can be changed quite quickly - is the scales of battery supplies.
Tesla has a few significant advantages though:
- they started to make BEVs from scratch, without any ICE baggage. Therefore they need no transitional period to phase out current products (that have a life-cycle of approx- 5- 7 years)
- they have instantly built their own charging stations network while others are doing that at slower pace or waiting other providers (energy companies) to do that
- they a start-up with investors who encourage the company to burn money (and generate no profit) to build a new tech, a new product, and build an advantage over other carmakers. Other carmakers are obliged to make profits during the same process.
- they have much more capable & sizeable software team - which is going to be more important when it comes to Connected & Autnomomous drive ... there is the biggest advantage of Tesla
- they have an iconic & cult brand image - just like Apple has - with huge crowd of followers (that's more an advantage over non-premium car brands)
As said before ... BEVs are significantly simpler (the drivetrain) than ICEs ... therefore AD is easier to apply to BEVs than to ICEVs or to hybrids.
So, when there will be AD revolution - and if it happens soon enough (it depends on legislation though) - Tesla will have a significant advantage over others: they will have hardware & software know-how & optimised production scales & processes to be able to offer great AD BEVs. Others will lag behind. Some (carmakers) will have hardware to offer but no great software; others (IT giants) will have software but no hardware.
But that does not mean others will fail ... but they will just come to market later. Just like Apple has competition in Samsung et al. Tesla will still have many rivals - other carmakers & other IT giants. Sure some cards will be shuffled ... some brands will perhaps be sold to IT giants; some carmakers will collaborate IT giants (like smathphone makers do); there will some new players emerge - notably from China etc.
But Tesla now has - from the current POV - the best position to offer the best products when the time is due. But others are not sleeping ... Especially not the German carmakers ... They are investing a lot ... but the problem is they have a baggage of ICEVs and they have to make a smooth transition to BEVs. Mind even when carmakers start to sell BEVs only they will still have to produce spare parts & offer repair service for exiting (older) ICEs & PHEVs for quite some time. So, they'll have to operate with baggage on their backs. They have no privilege of a clean slate - like the start-ups have.