A new digital diaper tracks your baby's health

A new sensor-embedded diaper tracks not only when it's time for a nappy change but also your baby's hydration and kidney health, and alerts parents when it's time to call a doctor.

New York-based Pixie Scientific has developed urine-tracking Smart Diapers, which feature a QR code on the bottom of the diaper that changes colour when your baby has urinated. Parents can then scan the code with their smartphone using a companion app to log the data.