Here is a non-invasive smart wearable device that monitors the bladder with an ultrasound sensor and sends smartphone notifications when it is time for the wearer to go to the bathroom. The DFree wearable has a lightweight design and can be discreetly worn on your belt or clothes. It connects to a WiFi base station to upload bladder data to the cloud.
The DFree Professional transmitter runs for up to 24 hours on battery. The data it collects is analyzed to predict when you need to go to the bathroom.[where to find it]