The camera has an LED indicator which can blink and change color. 
The behavior of the LED indicator is as follows:

Special indicators

• LED off if the camera is not powered on
• LED blinks between red and green if it is undergoing a software update. In this case, do not power off the camera and wait for the software update to be finalized to get access to it again
• LED blinking red if the camera is experiencing an error, the amount of blinks can be communicated to the support team for investigation and resolution of the error
• LED blinking green if the camera is in "ready to install" mode, and can be installed in a new WiZ home, or the existing Home after reset

Standard indicators

• LED off if the camera is in Privacy mode
• LED green stable if the camera is working without error (connected to local network) and is in standby or armed mode
• LED one blink red if the camera took a snapshot
• LED stable red if the camera is currently recording or a streaming session is happening