3. Samsung Galaxy S4
Samsung Galaxy was one of the first smartphones that featured temperature sensor for reading the environmental temperature. It features a handful of other sensors like accelerometer, gyro, proximity, compass, barometer, humidity, and gesture. Alongside 5.0 inches screen, it has Octa-core processor, 2GB of RAM and 16/32/64GB of storage. Back camera has 13MP while the front has 2MP.
