Ending today, Amazon offers the Yale Z-Wave Real Living Key-Free Touchscreen Deadbolt in Oil Rubbed Bronze or Satin Nickel for $152.79 with free shipping. That's the lowest price we could find by $29. Features include voice-guided setup, 9-volt battery backup, a motorized tapered deadbolt, the ability to store up to 250 entry codes, compatibility with a number of home automation products (including Alexa via SmartThings, Alarm.com, Honeywell, and Vivent), and requires four AA batteries (included).
Note: Although this item is currently out of stock, it can still be ordered at this price for delivery when available. (Estimated shipping dates are displayed on the product page.)