I’m I right in saying the smart sensors only show the temperature in whole degrees ie 18°c & do not record in half degrees ie 18.5°c. this is very disappointed. Please Samsung enable half degrees so when I ask Google home is give a more accurate temperature.
Not really, it depends on the sensor. Some sensors like the 4 in 1 sensor report 0.1 degrees changes. The precision depends on the manufacturer / specs of the device.