Scosche Armband Heart Rate Monitor

The Rhythm+ 2.0 builds on their two existing Rhythm optical HR sensors, with some modest updates around battery life and an updated sensor. Think of it more as evolutionary than revolutionary. Here’s the top-line specs: * Battery life: 24 hours * Connectivity: Dual ANT+ & Bluetooth Smart * Optical HR Sensors: Custom Valencell PerformTek sensor with two green and one yellow LED * Waterproofing: IP68, so good to three meters of depth * Armband: Removable clasp system