Samsung launched the Galaxy S5 with a couple of new sensors, which were perceived as gimmicky by tech experts.

1. Samsung Galaxy Note 4 could feature a UV sensor | ISweek - Industry sourcing
Samsung launched the Galaxy S5 with a couple of new sensors, which were perceived
as gimmicky by tech experts. However, we might see a very useful feature on the
upcoming Galaxy Note 4 handset. A new report suggests that the Samsung phablet will
feature an ultraviolet or UV sensor on the body to keep a tab on the radiation emitted by
the sun.
The data will be reportedly gathered by the S Health app, which can alert users
whenever the sunlight is detected to be harmful. UV radiation from the sun have a grave
risk of causing skin cancer, so this could be quite a useful sensor on the device if the
report holds true.
To measure the radiation on a particular day, users have to point the sensor towards the
sun at a 60 degree angle and the hardware/app combo will do the rest. It will be
interesting to see if Samsung will find a new place for this sensor or implement it within
the heart rate monitor. Either way, this is one of those sensors which will most likely be
deemed useful.
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