Can smartphone measure room temperature?

Yes, some smartphones have built-in sensors that can measure the ambient temperature of the environment. For example, many Android smartphones come with a temperature sensor that can be used to measure the temperature of the surrounding area. You can download an app that makes use of this sensor to display the current temperature on your phone's screen. There are also several third-party temperature sensor apps that you can download from the app store, which can measure the ambient temperature using the smartphone's camera or other sensors. However, it is important to note that the accuracy of these temperature readings may vary, and they are typically not as accurate as dedicated temperature sensors.

Certainly. In addition to using a smartphone's built-in temperature sensor or a third-party temperature sensor app, there are other ways to measure the temperature of a room or environment using a smartphone. For example, you could use a smartphone to control a smart thermostat, which can measure the ambient temperature in a room and adjust the temperature accordingly. You could also use a smartphone to connect to a smart home temperature sensor, which can measure the temperature in a specific location and send the data to your phone. Additionally, you could use a smartphone to remotely access a device with a temperature sensor, such as a weather station or a laboratory thermometer, and view the temperature readings remotely.

CONCLUSION: YES,but only few that have extra sensors for measuring device temprature hence third party apps are not reliable.