One way to figure out what a company is up to is to keep an eye on who they hire or promote. The increasingly authoritative site 9to5Mac spotted a couple of key hires at Apple not just in the wearables area but in the very specialized area of MedTech sensors.
This goes way beyond routine iWatch rumors. Something is up at Apple; when the iWatch finally does come out, there may be some bigger surprises than anyone is expecting.