Amazon continues to bring smart home startups under its wing with its newest acquisition. According to a Reuters report, the online retailer agreed to buy Ring, maker of connected video doorbells and smart home security cameras, for reportedly more than $1 billion.

The California-based startup is a logical acquisition for Amazon, given its recent dive into the smart home security sphere. The company launched Amazon Key last fall, a service that uses a security camera and smart door lock to allow couriers access to customers' homes to deliver packages.

Amazon Key is meant to be a more convenient and secure way for customers tor receive Amazon orders as package theft rises. But the service has been met with raised eyebrows as many questioned the security of Amazon's system itself. Ring could help Amazon bolster customer confidence in Amazon Key: Ring's smart video doorbell uses an embedded camera to let users see who's at their door (via Ring's mobile app) and a speaker/mic system to allow the user and the guest to communicate.

Amazon could integrate Ring into its Key service for those who want a clearer picture of who's entering their home in real time or those who want to monitor regular package deliveries. Currently, Amazon Key uses the Amazon-made Cloud Cam to record delivery personnel entering the home and one of a few compatible smart locks by Yale and Kwickset to let authorized people into the home with a unique unlock code.

Amazon and Ring aren't strangers—Ring's devices currently work with Alexa by showing users camera feeds on Echo Show devices after hearing commands like "Alexa, show me the front door." Amazon also invested in Ring through its Alexa Fund, which supports companies "fueling voice innovation."

Amazon's acquisition of Ring comes a few months after the company purchased Blink, a maker of smart home security cameras, for a reported $90 million. Energy-efficient technology and regular batteries power each tiny Blink camera, making the system untethered and more convenient to place around the home than other smart home security camera systems.

It's believed that Amazon bought Blink not only for its hardware but also for its low-energy technology. With battery life being a huge concern for smart home devices, Amazon may be looking for a way to integrate Blink's energy-efficient technology into its existing devices, including Echo products.