Ever wonder how many calories you gulp down with each cup of coffee? What about that fruit juice? Fret not, the Vessyl smart cup is here to keep track of your liquid intake. This 385 ml cup is equipped with sensors that automatically identify what you are drinking and tell you its calorific content. It even tells you whether you are having enough water through a bright blue line that rises up and down. And yes, there is an app that can nicely analyse your daily intake.