Smartwatch charging is a mess, with a different proprietary cable for every brand. Lose your watch cable on a trip, and you're waiting a week for an expensive replacement or hoping a knock-off Amazon cable works. However, the fitness watch brand COROS has found a unique solution to the dilemma of charging cable for watches.
When COROS launched its PACE Pro watch, it replaced its usual three-pin cable with a tiny USB-C dongle; you insert a USB-C cable into it, then plug the dongle's pins into your watch. This way, you don't need to keep a phone and watch charging cable on hand — just slide the dongle onto your phone cable every couple of weeks when the battery dies.
