The Apple iPhone 6 will come with a range of built in sensors which will include one for pressure, one for temperature and one for humidity. The phone is rumored to come with a bigger display that is said to be around 4.7 inches. The current iPhone 5 features a smaller 4 inch retina display.
The iPhone 6, as suggested by rumors will continue to use an 8 mega pixel camera with an improved sensor and features over the 5S. It is however unclear if Apple will adopt a new design or if it will share similar a similar design to the iPhone 5S.
The Apple iPhone 6 is slated to be launched in September along with iWatch smartwatch and newer version of mobile OS, the iOS 8.