Coffee-focused scale maker Acaia has launched the Pyxis Black, a small coffee scale the company says reads accurately to the thousandth of a gram.

Whether your goal is to diet or to bulk, whether you favour jabs or willpower, a smart scale keeps you on track and helps monitor your health.

It’s hard to hear that you’re more than a number when most health metrics are definitively quantitative. From your heart rate to your body mass index, it seems as though nearly every aspect of our ...