Analyst: Apple iWatch to sport UV light sensor

If all of the reports turn out to be true, the company's first wearable technology device could well be a wrist-worn virtual doctor rather than just a second screen for the iPhone. In a note to investors seen by Apple Insider, Barclays analyst Blayne Curtis says that the iWatch will be able to monitor the wearer's exposure to potentially harmful UV light and therefore know when it's time to reapply the sunscreen or cover up completely. In February, Silicon Labs, a Texas-based tech company, became the first to successfully build a single-chip digital UV index sensor, and Curtis believes that they could well be integrated into the Apple iWatch. "These chips measure UV exposure to aid those with elevated risk of sunburn or just a general concern about excessive sun exposure, and we believe they may be […] appealing to OEMs looking to differentiate in a crowded market," Curtis wrote.