Rockley Photonics 'wearable lab' device on a man's wrist

Rockley Photonics has developed a sensor stack that can monitor a wide array of biometrics non-invasively, but we’re not expecting to see it in the Apple Watch 8 (Image credit: Rockley Photonics)

The hardware and software looks promising, and Rockley has consumer wearables in mind, but the device is still undergoing clinical testing, and its reliance on cloud computing to process the harvested data could present a challenge for Apple when it comes to privacy.

It was widely anticipated that last year’s