- You can’t check the temperature of a room with your iPhone itself, but you can buy a thermometer that connects to your iPhone via Bluetooth.
- You can also use these apps and devices to measure the humidity in a room.
- To take body temperature, you can use the Apple Health app on your iPhone and a smart thermometer like Kinsa.
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If you need to monitor the room temperature of your home or office — for specialty plants or exotic pets, for example — there’s a way to do so with your iPhone, but it’s not free.
To accurately check room temperature with your iPhone, you’ll need to purchase an external thermometer, which you can use with an associated iOS app to monitor current temperature, historic temperature, humidity, and more.