Tizen leads something of a quiet life. The open-source OS championed by Samsung has received extra attention of late, being the platform of choice for the company's sleek, new Gear S2 smartwatch. Tizen was originally expected to be a much bigger deal, though, reducing Samsung's reliance on Android for all of its many, many smartphones. But after several years of development, only one Tizen-powered smartphone has actually made it to market: the low-end Samsung Z1, which launched earlier this year in India. More were promised, and it seems Samsung isn't quite ready to send its Tizen mobile ambitions gently into that good night, today announcing the mid-range Z3.