Mr. Blair expects Apple to start production some time in July or August, and will build between 18 million and 21 million before the end of 2014, according to Business Insider. Apple hasn't done anything to confirm or deny that it is working on wearable tech gera for our wrists, although CEO Tim Cook has said the company has an intense interest in the market.
Rumors claim the iWatch will include fitness and health tracking features, and will link to the iPhone wirelessly. The company has been hiring health and fitness technology experts for some time, as well as wearable tech and fashion pros. Considering those hires can't be simply coincidence, it appears as if Apple is building a dream team ahead of moving into the wearable market.
Apple will be hosting a special keynote presentation on June 2 to kick off its annual Worldwide Developer Conference where the company is expected to show off features in the upcoming versions of OS X and iOS. The event could also include a wearable-related announcement, although that isn't very likely because big new product announcements typically get their own special media event.
Supply chain sources aren't the most reliable for figuring out what Apple's plan may be, but there's enough information leaking out to go along with the company's hires to make the notion that wearable devices are coming all but a sure thing. Something that fits our wrists is very plausible, too, based on products like the Fitbit Flex, Jawbone Up, and Nike FuelBand.
Until Apple makes an announcement, it's still just speculation. Considering how much information is coming out, however, that speculation is leaning more towards when –not if — Apple will release products.