A smaller project that I worked on at Noom was re-designing the food Portion Picker (and other numerical data input UI widgets). The previous version of the portion picker was a small ruler with a coloured dot as a confirmation button. User research showed that many users were experiencing difficulty when logging food items, and we realized that the current confirmation button was likely not enough of a signifier for its function. After multiple prototypes and tests we decided on the design shown. This design features a larger touch area for the numerical selection ruler, a more salient unit display and selector, as well as a more intuitive confirmation button.