Polar H9 Heart Rate Sensor, Black, XS-S

The Polar H9 Heart Rate Sensor, Black, XS-S is a chest-strap monitor built for tracking heart rate and calorie consumption during physical activity. It records real-time data from its near-chest placement to gauge training intensity accurately. The sensor broadcasts this information simultaneously via Bluetooth 4.0, ANT+, and 5 kHz transmission. This triple connectivity ensures compatibility with smartphones, sports watches, gym equipment, and bicycle computers. A user-replaceable CR2025 coin-cell battery powers the device for up to 400 hours of training, reducing the frequency of battery swaps during regular workouts.

The transmission unit has a housing made from a combination of ABS, polycarbonate, and stainless steel for structural durability. Its waterproof construction allows it to withstand sweat and rain during demanding outdoor workouts. The accompanying textile chest strap uses a blend of polyamide, polyurethane, elastane, and polyester. This strap is fully machine-washable, simplifying hygiene after repeated high-sweat sessions. An adjustable fitting mechanism keeps the band secure around the chest across different body sizes. Weighing only 60 grams, the system remains lightweight and unobtrusive throughout prolonged exercise.

• Automatic heart rate sensing for hands-free data collection.
• Firmware upgradeable to maintain operational efficiency over time.
• Compatible with the Polar Beat app and third-party fitness applications.
• Solid black coloration provides a neutral aesthetic for training.
• Designed for running, cycling, gym workouts, and group exercise activities.