iGPSPORT HR80

The reviewer tested the iGPSPORT HR80 heart rate wristband, an arm-worn sensor that can be worn around the upper arm or forearm. He found it very comfortable, weighing just 19g, quick to activate, and with up to 100 hours of battery life. In a comparison against his Polar H9 chest strap during a short workout, he was surprised that the HR80 was virtually identical in accuracy, with an average of 144 bpm matching exactly and a max heart rate of 174 vs 175 (a 0.6% difference). He concluded it convinced him, is worth the money, and is a top addition to his training due to superior comfort with no loss in accuracy.