Introduction
The COROS PACE 3 Sport Watch GPS is designed for athletes seeking a lightweight, comfortable, and powerful training companion. It offers extended battery life, accurate dual-frequency GPS, comprehensive heart rate monitoring, and advanced navigation features to support a wide range of activities.

Image: The COROS PACE 3 Sport Watch GPS with a black silicone band, displaying time, battery, steps, and heart rate.
Setup
What's in the Box
- COROS PACE 3 Sport Watch
- Charging Cable
- Quick Start Guide
- Product Safety Booklet

Image: All items included in the COROS PACE 3 retail packaging.
Initial Setup
- Charge the Watch: Connect the charging cable to the watch and a USB power source. Ensure the watch is fully charged before first use.
- Power On: Press and hold the top button (digital dial) to power on the watch.
- Pair with COROS App: Download the COROS app on your smartphone. Open the app and follow the on-screen instructions to pair your PACE 3 watch. This will sync time, date, and personal settings.
- Customize Settings: Use the COROS app or the watch's interface to customize watch faces, data screens for various activities, and notification preferences.
Operating the COROS PACE 3
Product Overview Video
Video: An official overview of the COROS PACE 3 Sports watch, highlighting its features and design.
Comfort and Design
The COROS PACE 3 is engineered for maximum comfort and minimal distraction. Its ultra-slim 11.7mm profile and featherweight design (30g with nylon band) make it suitable for 24/7 wear, ensuring it's barely noticeable during activities or sleep.

Image: The COROS PACE 3's side profile highlighting its 11.7mm thickness and 39g weight (with silicone band).
Extended Battery Life
Experience unparalleled endurance with the PACE 3. It offers up to 38 hours of continuous GPS tracking or 17 days of daily use on a single charge, allowing you to focus on your training without frequent recharging.

Image: Visual representation of the COROS PACE 3's impressive battery life for GPS tracking and daily use.
Accurate GPS with Dual-Frequency
Equipped with a redesigned Dual-Frequency satellite chipset, the PACE 3 ensures highly accurate GPS tracks and coordinates, even in challenging urban environments with tall buildings. It also records air pressure and elevation gain for comprehensive outdoor data.

Image: A runner utilizing the navigation and route planner feature on the COROS PACE 3, supported by dual-frequency GPS.
Next-Gen Optical Heart Rate Sensor
The advanced optical heart rate sensor with 5 LEDs and 4 photodetectors provides accurate wrist-based measurements for tracking sleep, heart rate, and workout intensity, all protected by durable glass.

Image: Detailed view of the COROS PACE 3's next-generation optical heart rate sensor, showing its components.
Extensive Activity Modes
The PACE 3 offers a wide array of optimized activity modes, including Run, Trail Run, Bike, Swim, Strength, Snowboard, Ski, and XC Ski, ensuring accurate data tracking for your specific training needs.

Image: A visual menu of various sports and activity modes supported by the COROS PACE 3.
Sleep Tracking
Gain insights into your recovery with detailed sleep tracking data. The PACE 3 monitors 4 stages of sleep and resting heart rate, providing valuable information night after night.

Image: The COROS PACE 3 displaying sleep tracking data on its screen and a smartphone app, detailing sleep stages and averages.
Complete Training Solution
Leverage the COROS app for training plans, coaching advice, and analysis tools. Easily build custom routes or search for destinations, then sync navigation directly to your watch. The Breadcrumb navigation feature helps you stay on track during activities.

Image: The COROS PACE 3 watch integrated with the COROS app, showcasing training plans, coaching advice, and analysis tools.
Water Resistance
The COROS PACE 3 is water-resistant to 5 ATM, making it suitable for swimming and other water-based activities. You can sweat, swim, or shower without concern.
Connecting Third-Party Applications
Sync your activity data directly to popular health and fitness apps such as Strava, Nike Run Club, Apple Health, and Health Connect. You can also control your GoPro and Insta360 cameras directly from your wrist.
Maintenance
To ensure the longevity and optimal performance of your COROS PACE 3, regular maintenance is recommended:
- Cleaning: Regularly clean the watch and band with a soft, damp cloth. For silicone bands, mild soap and water can be used. Ensure the watch is completely dry before charging or wearing.
- Charging Port: Keep the charging contacts on the back of the watch clean and free of debris to ensure proper charging.
- Storage: Store the watch in a cool, dry place when not in use. Avoid extreme temperatures.
Troubleshooting
If you encounter issues with your COROS PACE 3, try the following common troubleshooting steps:
- Watch Not Responding: Try a soft reset by holding down the digital dial for 15 seconds until the COROS logo appears.
- GPS Signal Issues: Ensure you are in an open area with a clear view of the sky. Syncing with the COROS app regularly can help update satellite data.
- Heart Rate Inaccuracy: Ensure the watch is snug but comfortable on your wrist. Clean the sensor regularly.
- Syncing Problems: Check your phone's Bluetooth settings and ensure the COROS app is up to date. Restart both your phone and watch.
For more detailed troubleshooting or specific issues, please refer to the official COROS support website or the comprehensive User Guide (PDF).
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 4.02 x 4.02 x 4.02 inches |
| Item Weight | 5.3 ounces |
| Item Model Number | W331 |
| Batteries | 1 A batteries required (included) |
| Battery Life | 17 days (standard use), 38 hours (continuous GPS) |
| Screen Size | 1.2 Inches |
| Connectivity Technology | Bluetooth |
| Water Resistance | 5 ATM |
| Manufacturer | COROS Wearables Inc. |
| Country of Origin | China |
Warranty and Support
The COROS PACE 3 is manufactured by COROS Wearables Inc. For warranty information, product support, or to contact customer service, please visit the official COROS website or refer to the documentation included with your product.
You can also find the official User Guide here.





