Meet the LifeBEAM HAT: a smart wearable device that keeps track of your heart rate and performance without you having to wear a chest strap. It uses electro-optical sensors to monitor your heart rate, cadence and calories. You can rely on Bluetooth 4.0 and ANT+ connectivity to connect your devices and transmit data.
The hat has a weather resistant design and offers aerospace level heart rate measurement, cadence, and calorie consumption. What’s neat about this hat is its compatibility with most fitness apps and devices. These hats set you back $99 each.