For those contemplating selling their homes and want to attract millennial buyers, including smart technology such as smart locks or doorbells maybe a huge selling point. MarketWatch staffer Daniel Goldstein reports on the the increasing popularity of smart locks (ranging in price from $100 to $335) and smart doorbells ($100 to $200).

Smart locks allow your door to be open with your phone or the touch of your finger, though some are still working through hacking issues:

Smart lock technology is so new that the hacking issue for some locks is still unresolved. And some smart-lock companies haven’t been able to stay in business. For example the company ambitious Goji Smart Lock, which took photos of people who entered your home and emailed or texted you the image, went out of business in December 2015 after initially raising nearly $800,000.

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