The Hubble Grow + Smart Bluetooth Baby Scale with Integrated Measurement Tracking has made it simpler than ever to track your baby's development. Its ergonomic design makes it easier and more comfortable to weigh your baby. Never miss a moment of growth by saving data in a seamless step, using Bluetooth on the baby tracker, available on the HubbleClub app. It also includes a soft, washable, hypoallergenic cover that can be used as a diaper changing pad.