This Nutrition-Sensing Smartphone Might Ruin Food for You By Jared T. Miller Its built-in spectrometer can measure calorie counts, estimate the freshness of fruit, and even track body fat. Read More Tags: original video spectrometer smartphone ces 2017 nutrition select all More Jan. 27, 2017 Watch Now Would You Volunteer to be Infected With COVID-19? How Epidemics Made NYC Better The Story of a Coronavirus Infection This Nutrition-Sensing Smartphone Might Ruin Food for You