These smart doorbells are suitable for use with Amazon Alexa. This way, you get a notification on your Alexa Echo device so you don't have to depend on the app of your video doorbell. In addition, you can speak to the person at your door via Alexa. You don't even have to take your phone out of your pocket. You also operate the doorbell via Alexa. With a simple voice command, you can turn off the motion detection on your video doorbell, for example.