Coros HRM vs Polar H9

Coros HRM

€89

Polar H9

€64.90

Quick verdict

Coros HRM

€89

The better pick if you want:

No clear advantage on the specs we track.

Polar H9

€64.90

The better pick if you want:

A higher overall score (80 vs 70)
To spend $34.10 less

Spec profile

Each axis ranks against the 14 products in Heart Rate Monitor on the site: the further out, the more it stands out in that spec (lighter, cheaper…).

Center: lowest in the category · Edge: highest

Coros HRM· leads in 1

Lightness

Polar H9· leads in 4

Battery lifeFeaturesRangeAffordability

Tied

Water resistance

Battery life
38 h
400 hTop 21%
Features
1
2
Range
10 m
90 mTop 20%
Water resistance
30 mTop 43%
30 mTop 43%
Lightness
19 gTop 4%
60 g
Affordability
$99
$65Top 25%

Technical Specifications

Compare features between Coros HRM vs Polar H9

Best value in this comparisonOnly differences (13)

Essentials

€89

€64.90

July 2023

January 2020

Overview

Optical (PPG - photoplethysmography)

ECG (electrical heart rate measurement)

Optical heart rate sensor (5 LEDs, 4 photodetectors)

—

High-accuracy optical heart rate tracking from upper arm, More stable data compared to wrist-based sensors, Comfortable armband design (no chest strap required), Dual Bluetooth connection for multiple devices, Long battery life for extended training sessions

Accurate ECG-based heart rate tracking, Real-time heart rate monitoring, Comfortable soft textile strap, OwnCode coded transmission, Compatible with a wide range of devices and apps

Connectivity

Bluetooth Low Energy

Bluetooth Low Energy, ANT+, GymLink 5 kHz

Yes

Up to 10 m

Up to 90 m

Battery

Rechargeable (55 mAh)

CR2025 coin cell

Up to 38 hours (active use), 80 days standby

Up to 400 hours (about 1 hour of training per day)

Build & durability

3 ATM (30 meters)

WR30 (30 meters)

-10°C to 50°C

19 g (sensor + band)

60 g

Soft elastic fabric armband

Polyamide, polyurethane, elastane, polyester with silicone prints

Plastic

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Video Reviews

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Coros HRM

Polar H9

Visual Comparison

See the differences between Coros HRM and Polar H9 in a side-by-side slider comparison.

Comparison Questions

Answers based on product data and key differences.

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Frequently Asked Questions

Which offers better value: Coros HRM vs Polar H9?

For value comparison: The Coros HRM ($99) provides premium features compared to the Polar H9 ($64.9). Consider your budget and the specific features that matter most for your trail running setup.