Samsung Galaxy Note 4 featured an UV (ultraviolet) sensor

Samsung, in its continued push into the health-and-fitness space, could add yet another sensor to the next-generation Galaxy Note . According to details obtained by SamMobile, Samsung's forthcoming phablet may feature an ultraviolet (UV) sensor.
An industry first, the Galaxy Note 4 would help track potentially dangerous UV levels. A companion app would score radiation from "low" to "extreme," and offer recommendations.
To measure conditions, we're hearing that the phone sensor's will need to maintain a 60+ degree orientation, with the phone's back to the sun.
Samsung historically hosts Unpacked events at the annual IFA conference in Germany. This year's extravaganza gets under way on September 5, so look for the Note 4, amped up with all its sensors, to arrive then.
ISweek（http://www.isweek.com/）- Industry sourcing & Wholesale industrial products