Amazon’s Ring just made the first 4K battery doorbell, and quietly slipped a developer SDK alongside it. Available April 29 for $250, the Ring Battery Doorbell Pro (2nd Gen) 4K is the first piece of doorbell hardware aimed at agents, not just homeowners.
What’s actually in the box
A wire-free smart doorbell with Retinal 4K video and 10x enhanced zoom — sharp enough to read a delivery label across the porch. There’s a solar-panel accessory at launch if you don’t want to babysit the battery. Ring AI Pro ships with a trial: package, vehicle, and animal detection, familiar-face recognition, and natural-language video search (“show me everyone who came to the door yesterday after 6pm”). The interesting bit is Unusual Event Alerts — it learns your home’s normal traffic patterns and only pings you when something deviates.
The SDK is the real news
Announced March 31, 2026, the Ring API and App Store SDK let third-party apps subscribe to camera events, run their own AI on the live feed, and post actions back. An agent can poll motion events, pull the AI-generated description of who’s at the door, and trigger downstream automations — turn on porch lights, unlock for a familiar face, ping Slack when a package lands.
That last part is what makes this hardware, not just another doorbell.
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