Samsung’s upcoming phablet, which will be launched in early September – and which, for the first time ever, will have to face an Apple phablet – is said to pack an exclusive sensor that should further differentiate it from other competing devices. According to SamMobile, the Galaxy Note 4 will have an ultraviolet (UV) sensor that will help users stay out of the damaging rays of the sun. Following the heart rate sensor found in the Galaxy S5 and other wearable devices, Samsung appears to be more and more interested in adding such health-oriented features to future devices. The UV sensor will be able to measure UV radiation and offer index levels to Galaxy Note 4 users inside the S