Coros Pace 4 - Crystal Black

A premium version of our AMOLED GPS sport watch designed to help you train smarter.

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.

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.

REFINED DESIGN - The silicone band features a silk-screened ripple design, heat-cured for a permanent, high-definition finish.

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 has 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 to record training logs and notes, or to save quick notes mid-run.
  
• Up to 41 hours of GPS (All Systems Mode) and 19 days of daily use.
  
• An all-new aluminum bezel, while weighing just 33 grams with a nylon band.
  
• A vivid 1.2-inch, tapered AMOLED touchscreen keeps every detail clear in any light.
  
• A low-profile, 11.8mm stealth-inspired body that adds premium appeal.
  Advanced tools like Running Fitness, Race Predictor, Virtual Pacer, and
• personalized marathon plans help you unlock your next PR.
  
• Track your steps, recovery, sleep, HRV, and menstrual cycles to understand how your body's responding to training.

DIMENSIONS: 43.4 × 43.4 × 11.8 mm (Height does not include the optical heart rate sensor)

WEIGHT: 41 g 

DISPLAY SIZE: 1.2 inches

DISPLAY RESOLUTION: 390 × 390 pixels

DISPLAY TYPE: Touch Screen Always-On AMOLED Display

SCREEN MATERIAL: Mineral Glass

BEZEL MATERIAL: 6000 Series Aluminum Alloy / Fiber-Reinforced Polymer

COVER MATERIAL: Fiber Reinforced Polymer

WATCH BAND WIDTH: 22 mm

WATCH BAND SIZE (NYLON): 135 – 205 mm

WATCH BAND SIZE (SILICONE): 130 – 215 mm

INSTALLATION TYPE: Quick Release  

BUTTONS & DIALS: Digital Dial, Back Button, Action Button for shortcuts to your most used features, Pins, and more  

CONNECTIVITY:  

• 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:

• All Systems (GPS, GLONASS, Galileo, Beidou, QZSS): 41 Hours | 30 Hours (with Always-On Display), 14 hours with offline music playing
• 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: 4 GB

ACTIVITY MEMORY: 1,200 Hours (Estimates based on outdoor activities)

SATELLITE SYSTEMS: GPS, GLONASS, Galileo, Beidou, QZSS

GNSS CHIPSET: All-Satellite Dual-Frequency

NAVIGATION:

• Map Layer: Breadcrumb
• Additional Features: Checkpoint, Back-To-Start, Deviation Alert, Touchscreen-Enabled Map Control, Safety Alerts

SENSORS: 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 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 Swipe: 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: Nike Run Club, Komoot, TrainingPeaks, Strava, Relive, adidas Running, Apple Health, Stryd, Final Surge, Runalyze, Running Quotient, Decathlon

DISPLAY LANGUAGES: English, Simplified Chinese, Traditional Chinese, German, Spanish, French, Polish, Thai, Japanese, Korean, Portuguese, Italian, Russian, Vietnamese