Amazon Acquires Smart Doorbell Maker 'Ring' for a Reported $1 Billion Ring, based in Santa Monica, CA, manufactures video doorbell systems that enable people to see who was at the door from both inside and outside the home using their smartphone. The deal helps the e-commerce giant expand on its home security and in-house delivery services. It will also help Amazon reduce package theft when it comes to its expanding delivery operation. According to, GeekWire, Amazon will allow Ring to operate independently. Amazon previously partnered with lock manufacturers Kwikset and Yale for its new in-home delivery service, Amazon Key. Ring has raised $443.9 million so far, and was last valued at $760 million, according to Pitchbook.