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How to install a smart lock on an existing deadbolt - and why this model is my top pick

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ZDNET's key takeaways The Nuki smart lock is now available for $159 on its own, and $229 when combined with the Keypad 2.

This smart lock fits into an existing deadbolt, supports Matter for easy integrations with smart home systems, and features hands-free unlocking.

Though innovative, the Nuki smart lock requires a subscription for full remote access; it's also very loud when locking and unlocking, and the Keypad 2 is somewhat slow. View now at Nuki

I'm all for smart home technology, but I can understand that many people don't share my views. Though I'm currently embracing all the ways I can live like a Jetson, I also understand that many folks are hesitant about introducing robots and AI-powered tech to their homes for how they change your lifestyle.

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If you're a smart lock skeptic, the Nuki smart lock I tested is a low-fuss solution that might make you reconsider. This cylindrical-shaped smart lock fits on your existing deadbolt's inner mechanism, so it doesn't change your door's external appearance or remove the ability to use your physical key to unlock the door.

To set up the Nuki smart lock, you remove your traditional deadbolt's thumb turn and replace it with the Nuki. It even includes tape to put over your deadbolt's external part so it doesn't fall while installing the retrofit smart lock. It's a simple installation process that requires no handyman skills.

Setting it up on the app is just as easy as pairing your smart lock, and using it doesn't even require an account.

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The Nuki smart lock is loud when locking and unlocking, which isn't great. There's always a whirring sound whenever you use the lock, letting most people in the house know when the door's been locked or unlocked. I don't care for a loud smart lock, simply because it sounds old-fashioned, but the sound isn't a deal-breaker.

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