Polar H9 Heart Rate Sensor
4.2
9,781 ratingsPolar's value chest strap. H10 accuracy without the multi-device or memory mode. Dual Bluetooth + ANT+ at half the price.

85
ExcellentGym Score breakdown
Composite of build quality, durability, value, performance, and owner satisfaction. Calibrated per category.
Value82
Owner Satisfaction89
Strengths
- + Dual Bluetooth + ANT+
- + Same chest-strap accuracy as H10
- + Long battery life
Weaknesses
- − No internal memory (vs H10)
- − Single connection at a time
- − Strap wears after ~2 years
Buyer sentiment
Mixed feedback on reliability and connectivity. Some flag battery life.
↓ Battery Life
Based on 1,162 user mentions
Full specs
- Connectivity
- Bluetooth + ANT+
- Battery
- Up to 400 hr CR2025
- Water Resistance
- 30m
Polar H9 Heart Rate Sensor
$69
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