The Nuki Smart Lock is highly regarded as the best retrofit smart lock for those seeking a minimalist, feature-rich enhancement to their existing deadlock. During the Big Spring Sale, it is available at Amazon for $149, the lowest price yet. Its quick unlocking speed, Matter-over-Thread support, and extensive smart home compatibility led to high praise from Jennifer Pattison Tuohy, who considered it the most advanced model she tested in her review. The lock installs easily without replacing the entire system, supports major smart home platforms through Matter, and allows digital access sharing, making it ideal for situations like vacation plant care. Initially, the Nuki Smart Lock cost $159.99, but after addressing critiques in a review, the price rose to $199.99 while removing the necessity of a $5.90/month subscription. Subscribers previously needed the plan to unlock the lock remotely via Wi-Fi or receive lock activity alerts. Now, buyers get the best price with all features included. Importantly, the lock’s Matter-over-Thread connection never required a subscription and provides significant battery savings compared to Wi-Fi-only control.
