Moov HR Sweat review: This heart rate-tracking headband will kick your butt

Fitness trackers come in all shapes and sizes at a variety of price points, and they all have the same basic features: step-counting, sleep-monitoring, and exercise-tracking, with some unique traits just to keep things interesting. But few of these wearable devices are designed to really get your heart pumping, even the ones with heart-rate monitors built in.
Moov’s new HR Sweat is a headband that promises to not only track your pulse accurately in real time, but also kickstart your fitne