It doesn't vibrate for every notification, however, instead asking wearers to set up every app and every contact who they want to receive notifications from. The Chronos' main job is to alert wearers to incoming notifications. The Chronos does add an appreciable thickness to the watch, setting it higher off of your wrist, but it isn't particularly noticeable when placed beneath a larger model. Putting a tiny flashing disc beneath a several hundred or several thousand dollar watch isn't necessarily the most elegant solution in the world, but it's a neat option for people who are interested in smartwatches but don't want to give up what they're currently wearing. It's just under 3mm thin, and there's a rubber surface on one side that forms a suction against the bottom of the watch it's connecting to. Chronos does fitness tracking too, and it can also control a connected phone in basic ways, like declining calls or skipping ahead a track when listening to music.Ĭhronos does notifications and activity trackingĬhronos basically looks like a watch battery. The product, called Chronos, is a thin disc that sticks to the bottom of a watch and can vibrate and light up to alert you of notifications. Watch enthusiasts may not want to exchange their timeless timepieces for short-lived smartwatches, but a new product can help give their analog pieces some of smartwatches' best tricks.

Watches with little disc