Beets Blu Wireless Bluetooth Smart 4.0 Heart Rate Monitor is Compatible with Smartphones Apple (4S, 5, 5S, 5C, 6, 6 plus), Samsung Galaxy (S4, S5) and Nexus (4, 5, 7). With Soft Chest Strap

Beets BLU with chest strap ensures a continuous heart rate measurement with no interruption to exercise. The sensor captures the slightest electrical impulses and performs the most accurate heart rate readout due to ECG-based technology. Beets BLU is easy to use right out of the box. It starts your heart rate reading in seconds and