As a customer, I wouldn't buy such a device from a new entrant out of fear of the dreaded "Our amazing journey" blog post when the start up is inevitably shuttered or acquired. The existing players are likely to still exist for the 4+ year device lifetime, which is handy for security updates, warranty and service and replacement purposes.
1. The big companies also shutter projects. Minus the "amazing journey" blog post. Their announcements usually have the tone of "Thanks for being part of the gigantic data collection experiment although you wouldn't quite know that yet. Here, take this gratuitous 6 month window to take your data out and then go f yourselves."
2. The security updates, warranty and service and replacement etc also involves occasionally bricking perfectly running systems (ala Windows 10), so it is hardly a comforting thought.
Yes that's the difference between early adopters and the mainstream market. The early adopters will take a risk but companies typically need to change strategies to go beyond that. For details see the classic business book "Crossing the Chasm" by Geoffrey A. Moore.
That means your needs are being met by current devices. That means you are not the target audience for a new disruptive technology. The initial users for this new company are desperate.
True, Graham offers a naive reading about when hardware startups can win. Yes, a start-up came up with the smartwatch(pebble), and another came up with the wireless earphones. And those were pretty good products .
This is a great pitch for an early-stage fund. Sort of like the kind pg peddles :).
(I mostly agree with the analysis, but the bias is worth noting.)