A "circular smartwatch" refers to a type of wearable device on your wrist that has a round or circular display instead of a square or rectangular one. Full definition
Moreover, this will be the company's first circular smartwatch. (techone3.in)
Internet technology giant Google will launch its new circular smartwatch in early 2017. (techtree.com)
At the time there weren't many circular smartwatches on the market, so between that, the steel casing, and the circular display — complete with the «flat tire» at bottom — it was tough not to draw the immediate comparison. (pocketnow.com)