Customers who want a new smart watch now have another reason to drop everything and wait for Apple to release its iWatch. According to recent reports, in addition to sensors that are related to various parameters related to health, iWatch should also have a sensor UV light. Silicon Labs has recently discovered a series of products that will contain the first in the industry of digital sensor of UV index. These chips will measure exposure to UV radiation in order to assist those with an increased risk for burns, or simply indicate a general concern about large exposure to the sun. Reports even talk about the fact that this company could earn 2 to 4 million dollars if Apple will really using these chips in their iWatch.