Amazfit Helio Strap vs Coros HRM

Amazfit Helio Strap

$99.99

Coros HRM

€89

Quick verdict

Amazfit Helio Strap

$99.99

The better pick if you want:

A higher overall score (80 vs 70)

Coros HRM

€89

The better pick if you want:

No clear advantage on the specs we track.

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

Amazfit Helio Strap· leads in 3

Battery lifeFeaturesWater resistance

Coros HRM· leads in 1

Affordability

Battery life
240 hTop 46%
38 h
Features
2
1
Range
No data
10 m
Water resistance
50 mTop 11%
30 mTop 43%
Lightness
No data
19 gTop 4%
Affordability
$100
$99

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 Amazfit Helio Strap vs Coros HRM

Best value in this comparisonOnly differences (15)

Essentials

$99.99

€89

June 2025

July 2023

Overview

Optical (BioTracker 6.0 PPG, 5PD + 2LED)

Optical (PPG - photoplethysmography)

Optical heart rate sensor (BioTracker 6.0), Accelerometer

Optical heart rate sensor (5 LEDs, 4 photodetectors)

Heart rate every second, day and night, Worn on the upper arm in training to reduce movement errors, Live heart rate broadcast to watches, bike computers and apps, Recovery and sleep insights without a subscription, HYROX race mode

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

Connectivity

Bluetooth 5.2 (BLE heart rate broadcast)

Bluetooth Low Energy

Yes

—

Up to 10 m

Yes (up to 21 days of heart rate data offline)

Battery

Rechargeable (232 mAh, magnetic charger)

Rechargeable (55 mAh)

Up to 10 days (typical use)

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

Build & durability

5 ATM (50 meters)

3 ATM (30 meters)

—

-10°C to 50°C

—

19 g (sensor + band)

Fabric band

Soft elastic fabric armband

Plastic

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Video Reviews

Watch real-world YouTube reviews from content creators and the Trail Running community.

See all 10 video reviews

Amazfit Helio Strap

Coros HRM

Visual Comparison

See the differences between Amazfit Helio Strap and Coros HRM 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: Amazfit Helio Strap vs Coros HRM?

For value comparison: The Amazfit Helio Strap ($99.99) provides premium features compared to the Coros HRM ($99). Consider your budget and the specific features that matter most for your trail running setup.