1
Polar Verity Sense
Polar
$99.9+$0.90Score 98+28
Better than Coros HRM at:
- A higher overall score (98 vs 70)
Coros HRM
€89
Suunto Smart Heart Rate Belt 2
$129
Quick verdict
Coros HRM
€89
The better pick if you want:
- To spend $30 less
Suunto Smart Heart Rate Belt 2
$129
The better pick if you want:
- A higher overall score (89 vs 70)
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
Affordability
Suunto Smart Heart Rate Belt 2· leads in 2
Battery lifeFeatures
Tied
RangeWater resistance
Battery life
38 h460 hTop 11%Features
14Top 21%Range
10 m10 mWater resistance
30 mTop 43%30 mTop 43%Lightness
19 gTop 4%No dataAffordability
$99$129
A spec without data for a product is left out of its shape, so it doesn't count as a low score.
Technical Specifications
Compare features between Coros HRM vs Suunto Smart Heart Rate Belt 2
Best value in this comparison
Essentials
€89
$129
July 2023
September 2026
Overview
Optical (PPG - photoplethysmography)
ECG (electrical heart rate measurement)
Optical heart rate sensor (5 LEDs, 4 photodetectors)
Six-axis motion sensor
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
ECG heart rate with QRS artifact rejection and static shielding, Running form with compatible Suunto watches: cadence, ground contact time, vertical oscillation, flight time and left/right balance, 20 hours of onboard memory, up from 3.5 hours, Streams to up to three Bluetooth devices at once, Replaceable coin cell battery
Connectivity
Bluetooth Low Energy
Bluetooth Low Energy (up to 3 connections)
Yes
Yes
Up to 10 m
Up to 10 m
No
Yes (20 hours of R-R data, rolling)
Battery
Rechargeable (55 mAh)
CR2032 coin cell
Up to 38 hours (active use), 80 days standby
Up to 460 hours (one connection, running form off, power save on)
Build & durability
3 ATM (30 meters)
30 m
-10°C to 50°C
—
19 g (sensor + band)
—
Soft elastic fabric armband
Textile chest strap
Plastic
Plastic
Ready to buy?
Have you used the Coros HRM before?
Help the community by answering
Have you used the Suunto Smart Heart Rate Belt 2 before?
Help the community by answering
Video Reviews
Watch real-world YouTube reviews from content creators and the Trail Running community.
Coros HRM
Suunto Smart Heart Rate Belt 2
Visual Comparison
See the differences between Coros HRM and Suunto Smart Heart Rate Belt 2 in a side-by-side slider comparison.
Comparison Questions
Answers based on product data and key differences.
Ask your own question
Can't find what you're looking for? Ask anything about Coros HRM vs Suunto Smart Heart Rate Belt 2 and our AI will answer.
Try asking:
Frequently Asked Questions
Which offers better value: Coros HRM vs Suunto Smart Heart Rate Belt 2?
For value comparison: The Coros HRM ($99) offers better affordability compared to the Suunto Smart Heart Rate Belt 2 ($129). Consider your budget and the specific features that matter most for your trail running setup.
Which is newer, the Coros HRM or the Suunto Smart Heart Rate Belt 2?
The Suunto Smart Heart Rate Belt 2 is newer: it came out in September 2026, and the Coros HRM in July 2023.
Looking for alternatives to Coros HRM?
Closest in price, with what each one does better.
3
Amazfit Helio Strap
Amazfit
$99.99+$0.99Score 80+10
Better than Coros HRM at:
- A higher overall score (80 vs 70)
Popular Comparisons
Compare Coros HRM or Suunto Smart Heart Rate Belt 2 with other top trail running heart rate monitor from brands such as Coros, Suunto and more.
Heart Rate MonitorCompare now →
Garmin HRM 200
2 – 3Garmin HRM 600
Heart Rate MonitorCompare now →
Polar H9
1 – 1Polar H10
Heart Rate MonitorCompare now →
Polar H10
4 – 1Garmin HRM 600
Heart Rate MonitorCompare now →
Polar H10
2 – 3Polar Verity Sense
Heart Rate MonitorCompare now →