The low-tech way to ensure that you're consuming enough liquids throughout the day would be to carry a water bottle with volume markings; the E-WAT system presents a hi-tech method that can accurately gauge your precise level of dehydration.
WenHua Zhang designed the canteen to incorporate a touch sensor-panel that wraps around the coated aircraft aluminum cylinder. When you grasp the thermos, the material will take readings from your skin regarding pH value and hydration levels. This information is displayed on a generous digital dashboard on the top of the E-WAT water bottle, telling you how much you've had to drink since morning and how much more you need to reach your daily goal for optimal health.
The E-WAT Water Bottle Keeps Track of Your Fluid Consumption
Amelia Roblin — January 22, 2014 — Lifestyle
References: behance.net & yankodesign