Acaia Lunar

The Acaia Lunar is a 15mm-tall espresso scale with a water-resistant anodized aluminum body that fits under most portafilters. It reads to 0.1g, auto-tares and starts its timer when a cup is placed, shows live flow rate and connects over Bluetooth 5.0 to Acaia's app. A USB-C charge lasts more than 30 hours, and it suits serious home and cafe baristas.