● Train With Purpose
Stay in your optimal zone and push every workout further.
● Stay Fully Connected
Your performance, tracked seamlessly across your training ecosystem.
● Move Without Distraction
Secure comfort that lets you focus only on the workout.
● Built for Relentless Training
Designed to keep up with every intense session.
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Haptic Redline Alerts & Optical Telemetry
Chest straps can restrict breathing during brutal grappling or heavy lifting. The Pheuw® x COOSPO HW9 Armband shifts elite biometric tracking to your forearm or bicep. Engineered with an advanced optical sensor delivering ±1 BPM accuracy, it tracks your exact kinetic output while granting complete mechanical freedom. The ultimate tactical advantage? A built-in vibration motor that physically warns you the second you redline.
Biometric Output Metrics
You shouldn't have to break your focus to check a screen. The HW9 features a 5-color LED indicator that instantly displays your current heart rate zone. More importantly, using the Heartool/CoospoRide App, you can set a custom Max Heart Rate. If you push past that limit, the HW9 triggers a physical vibration directly on your arm—guarding your training safety and preventing catastrophic overexertion.
| Feature | Engineering Detail |
|---|---|
| Optical Precision | Advanced optical array delivers ±1 BPM accuracy and supports HRV tracking |
| Feedback System | 5-Color LED Zone Indicator combined with a Max HR Vibration Motor |
| Power Source | Rechargeable lithium battery yields up to 35 hours via Magnetic Fast-Charging |
| Element Defense | IP67 Rating — fully dustproof and heavily sweat-resistant for brutal workouts |
Performance Radar
Your data belongs everywhere you train. The HW9 features elite Bluetooth 5.0 (allowing two simultaneous BT connections) alongside ANT+ broadcasting. Connect instantly to GPS watches, bike computers, and over 200+ top-tier apps including Strava, Zwift, Polar Beat, Elite HRV, and DDP Yoga.
Instantly identify your kinetic output without breaking your line of sight.
| LED Color | Heart Rate Zone (%) | Combat Phase |
|---|---|---|
| LIGHT BLUE | Below 60% | Warm-up / Active Recovery |
| GREEN | 60% - 70% | Fat Burning / Base Endurance |
| YELLOW | 70% - 80% | Aerobic / Moderate Intensity |
| RED | 80% - 90% | Anaerobic / High Intensity |
| PURPLE | 90% - 100% | Max Output / Redline |
| HAPTIC VIBRATION | > MAX Customized HR | CRITICAL ALERT: Back Off Pace |
⚠ TACTICAL CONFIGURATION: The default Max HR is 200 BPM. Use the CoospoRide or Heartool App to customize your true Max HR to ensure the vibration warning triggers at your personal limit.
Manufactured in Singapore
Our pieces are made in Singapore with trusted partners who match our quality standards.
Shipping (USA)
Tracking
A tracking number is emailed once your order ships.
Need help?
Email: contact@pheuw.com
We reply within 24 hours.
Pheuw® Strap heart rate monitor
