So much for baby tech. This is interesting.
Talking tape "Smart Sitter"|sherrive-official
This smart device allows you to know when to change your baby's diaper. It is used by attaching the waste detection sensor to the inside of the diaper using the included tave. Simply download the free dedicated app, connect it to your smartphone, and you are ready to go. When the baby pees or poops, a notification will be sent to your smartphone. However, because of the Bluetooth connection, it does not seem to be able to detect in real time when the baby is more than 15 meters away.
The main unit can be purchased once, but the tape used to attach the sensor is disposable (must be replaced every time a person defecates). There are four sizes: newborn, S, M, and L. The price range is ¥1,500 for 20 times, ¥3,000 for 100 times, and ¥3,980 for 300 times.
Peeing and pooping can be checked separately, and logs can be displayed in a diary format and graphically.