Apple iPhone 6s is the best smart phone man can have, it works so seamlessly. Best feature in iPhone 6s is 3D touch.
And all third party app have integrated this feature in there. It literally measure the pure you are applying and give you output which you expect.
Truetone display flasch, not slefies in dark are more fun. I know it creates dent your pocket. But you many do many priductive work with this device, to refill your pocket: )