iGPSPORT HR80 optical heart rate armband: heart rate without a chest strap, ANT+ and Bluetooth (2 devices), 100 h battery life, IP67.

Heart rate without the chest strap

Plenty of cyclists give up on chest straps because they squeeze, rub or slip. The HR80 is worn on the forearm or upper arm, in a jacquard-knit band, and sends your heart rate to your GPS, watch or app. No buttons: it switches on when you put it on and goes to sleep when you take it off.

Specifications

• Multi-channel optical sensor
• ANT+ and Bluetooth, up to two Bluetooth devices simultaneously
• Battery life: 100 hours, USB-C charging in 1 hour
• IP67 water resistance (not designed for swimming)
• Operating range from -10 to 50 °C
• Sensor 11 g, 19 g with the band; arm circumference 180 to 320 mm

HR80 armband or HR50 chest strap?

The HR80 is optical: it reads blood flow beneath the skin. The HR50 chest strap picks up the heart's electrical signal (ECG) and responds faster to sudden changes in effort. For short intervals and sprints, the HR50 keeps the edge. For long rides, indoor training and anyone who simply can't get on with a chest strap, the HR80 is far more comfortable, and its dual Bluetooth connection lets you feed your GPS and Zwift at the same time, for example.

In the box: sensor with armband, spare armband, instructions.