NEW YORK—Amazon.com is eyeing a move into the smart glasses market. The online retail and technology giant is developing its first wearable device, a pair of “smart glasses,” the Financial Times reported on Wednesday.

The device, designed like a conventional pair of spectacles, will let Amazon's digital assistant Alexa to be summoned anytime at all places, the report said, citing people familiar with the plans. A bone-conduction audio system in the device would let the wearer hear Alexa without inserting headphones into his or her ears, according to the report.

The newspaper says one or both of these products could be launched before the end of the year, alongside updates to existing Echo devices. Amazon was not available to comment on the report.