Gululu, a smart bottle for children, is an innovative product crafted as an engaging and interactive daily companion. It helps children develop regular water-drinking habit. It is approachable, fun, and practical. The physical appearance is painted in fun and bright colors. The curved and round body form the ideal bottle for children. The soft-touch skin is smooth and seamless, making it approachable, and adds protection to inevitable hit or break. The parallel screw thread on the cap increases the friction enabling children to hold it tight. The replaceable spout prevents water from leaking even when the lid is removed. And the detachable design makes cleaning an easy task. The piece is made from BPA-free and FDA-approved materials. Being children-centric and considerately designed, the interactions with the gamified virtual pets in the bottle encourage children to be self-motivated. The embedded sensors measure the drinking amount of the child, and inform the parents via the App. With precise integration of hardware and software, Gululu is created to brighten up the child’s day.