Ring Smart Lock launches at $249 — no backup key, no external battery, just a crank. That’s the headline move from Amazon’s Ring division, which today unveiled its first smart lock alongside a refreshed lineup of 4K security cameras. The lock doesn’t rely on Wi-Fi or a hub to function, it uses Amazon Sidewalk for remote status checks and PIN syncing. And it fits standard single-cylinder deadbolts with no wiring required. Installation is tool-free, Ring says. It unlocks via fingerprint, touchscreen keypad, Ring app, or Alexa voice command. And when the four AA batteries die? You turn the thumbturn, like winding a mechanical watch. Three to five times. That generates enough power for one unlock. No fumbling for keys. No emergency power bank. Just motion, not electricity. It ships in black, silver, and brass, and arrives in the US in early 2027. No Indian price or launch date is announced. Ring hasn’t confirmed whether the lock will support Matter or Thread, nor has it shared battery life estimates. Those details remain unconfirmed. But the core promise is clear: eliminate the ‘locked out’ panic without adding complexity. It’s not the first smart lock with kinetic charging, Yale and Level tried variants. But it’s the first from Ring, and the first built into a mainstream consumer security ecosystem that already includes doorbells and cameras. The new Ring Outdoor Cam 4K Plus ($149.99), Floodlight Cam 4K Plus ($219.99), Spotlight Cam 4K Plus ($199.99), and Indoor Cam 4K ($99.99) all claim improved low-light performance under Ring’s new Retinal Vision 4K standard. Pre-orders open today for the Outdoor and Floodlight models. The Indoor Cam 4K is available now. The Pan-Tilt Indoor Cam 2K ($69.99) adds 360-degree coverage but drops to 2K resolution. None of these cameras are branded as ‘Ring Doorbell’ devices, they’re standalone cams. So if you’re searching for ‘Ring doorbell camera’, this isn’t it. But if you’re looking for Ring’s first smart lock. Or its next-gen 4K security cams, this is the launch.