First look: This is the Galaxy Fit 4, Samsung’s next budget fitness tracker

Credit: Kaitlyn Cimino / Android Authority TL;DR We’ve spotted documentation and a rear render that confirms Samsung is working on the Galaxy Fit 4 with model number SM-R391. The device likely features a Goodix GH3036 optical sensor module for low-power heart rate and sleep tracking, along with Bluetooth Low Energy support. The rear render shows a device that is near-identical to the Galaxy Fit 3.