Some of the definitions of status symbols are a bit lofty and narrow.
A Dyson vacuum can be a status symbol. Or a VAIO laptop. Or an iPod or iPhone or Macbook.
A lot of people don't buy Macbooks because they're the best bang for the buck. Apple doesn't come down to match competition when they first launch. People are buying it because Apple makes it, and Apple makes stuff that "just works" and is "fancy."
iPods were status symbols. People weren't dropping $300+ just to play music on the go before iPods. The best discmans weren't that expensive. The white earbuds are iconic.
And even though Apple sells a ton of phones, they are still not the majority of sales in the US, let alone the world. Apple has set themselves up as a luxury brand. Maybe not the same way Bugatti or Rolex is a luxury brand, but they are one nonetheless.
It's one of the main reasons people continue to buy their products, even though all their latest releases have been responses as opposed to innovations.