First up, we have the Ring Doorbell — the industry standard. The Ring Video Doorbell 2 is 100% compatible with Alexa. This powerful combination of devices lets you view, listen, and speak with visitors at your door. Tell the pizza man to hang tight, or tell the porch pirate to get lost. You can start and stop your Ring feed and even view your most recent video. The more advanced Ring Doorbell Pro allows for Alexa voice commands.