A premium version of our AMOLED GPS sport watch designed to help you train smarter.
All our COROS Watches comes with a 2-year warranty from the purchase date, and COROS Accessories such as POD, POD 2 and Heart Rate Monitor comes with a 1-year warranty from the purchase date.
Other available colour: Black Silicone, Black Nylon, White Silicone, White Nylon
HIDDEN IN PLAIN SIGHT
Black Crystal is a stealth-inspired edition of COROS PACE 4, designed for athletes who value precision and purpose over excess. An aluminum bezel adds structural integrity and a premium finish, while translucent elements bring a new feeling of depth to the design. It's the same ultralight performance you expect from PACE 4, designed with an elevated look and feel.
REFINED DESIGN
The silicone band features a silk-screened ripple design, heat-cured for a permanent, high definition finish.
DETAILS WITH DEPTH
Two-tone injection molding on the watch lugs creates a translucent multi-layered appearance, going beyond
a standard polymer look and giving PACE 4 Black Crystal a sophisticated, industrial edge.
VAPOR DEPOSITED RESILIENCE
Physical Vapor Deposition (PVD) bonds a matte metallic finish to the bezel at a molecular level. The result is a surface that resists sweat and salt, maintaining an elevated appearance year after year.
UNCOMPROMISINGLY LIGHT
Even with added aluminum, PACE 4 Black Crystal maintains an incredibly lightweight profile at just 33 grams with a nylon band.
AMOLED AT ITS BEST
The 2.5D touchscreen AMOLED display with a tapered edge and crystal clear visibility.
ALUMINUM ALLOY ARCHITECTURE
A 6000-series aluminum alloy bezel provides a high-integrity frame to the refined silhouette of PACE 4. It balances structural integrity with a smooth finish, ready to endure the hustle of an active life.
BIG BATTERY LIFE
Efficient power, tucked into our most refined design.
BUILT-IN MIC
Use the microphone to save training notes or capture voice notes mid-run.
COMPLETE ACTIVITY DETAILS
Upload photos, videos, and Voice Pins.
COROS APP
TRAINING, RECOVERY, AND HEALTH HUB
Track detailed training metrics like recovery time, sleep stages, HRV, and menstrual cycles to understand how your body is responding to training.
Specification
Size and Weight
Dimensions: 43.4 x 43.4 x 11.8 mm
Height does not include the optical heart rate sensor
Weight:
- 41g with silicone band
- 33g with nylon band
Display Size: 1.2 inches
Display Resolution: 390 x 390 pixels
Display Type: Touch Screen Always-On AMOLED Display
Screen Material: Mineral Glass
Bezel Material: Fiber Reinforced Polymer
Cover Material: 6000 Series Aluminum Alloy
Band Material: Silicone / Nylon
Watch Band Width: 22mm
- Size - Nylon: 135 - 205mm
- Size - Silicone: 130 - 215mm
Installation Type: Quick Release
Buttons & Dials: Digital Dial
Back Button: Action Button ( for shortcuts to your most used features, Pins, and more )
Phone: Bluetooth
Accessories: Bluetooth
Data Sync: Wi-Fi / COROS App
Water Resistance: 5 ATM ( Suitable for surface water activities and not for diving )
Working Temperature: -4°F to 122°F (-20°C to 50°C)
- Storage Temperature: -4°F to 140°F (-20°C to 60°C)
Battery
- Standard Full GPS (GPS/QZSS) —
- High All Systems (GPS, GLONASS, Galileo, Beidou, QZSS):
- 41 Hours | 30 Hours (with Always-On Display)
- 14 hours with offline music playing
- Max Dual Frequency (GPS, GLONASS, Galileo, Beidou, QZSS):
- 31 Hours | 24 Hours (with Always-On Display)
- 12 hours with offline music playing
- Daily Use & Sleep Tracking:
- 19 Days | 6 Days (with Always-On Display)
Charging Time: Less Than 2 Hours
Internal Memory: 4GB
Activity Memory: 1200 Hours Estimates based on outdoor activities
Geo Location
- Satellite Systems: GPS, GLONASS, Galileo, Beidou, QZSS
- GNSS Chipset: All-Satellite Dual-Frequency
Map Layer: Breadcrumb
Additional Features
- Checkpoint
- Back-To-Start
- Deviation Alert
- Touchscreen-Enabled Map Control
- Safety Alerts
Data Tracking
Sensor
- Microphone to record training logs, use voice commands, and save Voice Pins
- Optical Heart Rate Monitor ( May not work over tattoos )
- Barometric Altimeter
- Accelerometer
- Gyroscope
- 3D Compass
- Thermometer
- Supports body temperature in training (with compatible accessory)
- Optical Pulse Oximeter
Training Features
- Effort Pace ( A personalized metric that represents true effort when running )
- EvoLab ( Recovery, fatigue, training load, race predictor, VO2 max, threshold zones and more metrics )
- Activity Alerts (For cadence, distance, pace, heart rate, power and more metrics )
- Basic/Advanced Interval Training
- Pre-planned Workouts
- Training Plans
- Running Fitness
- Resting Heart Rate
- Underwater Heart Rate
- Action Camera Control ( Supports select GoPro, DJI, Insta360 cameras )
- Virtual Pacer
- Virtual Run
- Running Form Test ( Requires COROS POD/POD 2 )
- Altitude Mode ( Regular evaluation of SpO2 and fitness when at high altitudes )
- Touch Scroll ( Swipe to scroll data pages during training )
- Extender
Daily Features
- Daily Stress
- Wellness Check
- Message/Call Alert ( Supports daily use and during training )
- Sleep ( with REM tracking )
- Alarm
- Timer
- Stopwatch
- Daily Data ( Includes active calories, exercise time, storm and more alerts )
- Updateable Firmware ( with Wi-Fi and the COROS app )
- Find My Phone
- Find My Watch
- Backlight Always-On Mode
- HRV
- Music ( Plays offline music when paired with supported Bluetooth headsets )
3rd Party Integration
Compatible Apps
- Nike Run Club, Komoot, TrainingPeaks, Strava, Relive, adidas Running, Apple Health, Stryd, Final Surge, Runalyze, Running Quotient, Decathlon
System Languages
Display Language
- English, Simplified Chinese, Traditional Chinese, German, Spanish, French, Polish, Thai, Japanese, Korean, Portuguese, Italian, Russian, Vietnamese