• Custom design featuring Suguru's signature colorway, finished with an aluminum bezel.
• 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.
• A vivid 1.2 inch, tapered AMOLED touchscreen keeps every detail clear in any light.
• Comes with a special edition silicone band engraved with Suguru's mantra, "Now or Never."
• 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.

NOW OR NEVER

One of the most iconic athletes in Japanese long-distance running, Suguru Osako has broken the national record multiple times, finished 6th in the marathon at the Tokyo Olympics, and set a new Japanese record at the Valencia Marathon with a time of 2:04:55.

QUIET CONTRAST

The yellow accent button contrasts with the matte grey-green case and silver aluminum bezel, reflecting focused commitment in a premium finish.

ULTRALIGHT ALUMINUM

Featuring 6000-series aluminum alloy, the silver bezel provides durability against sweat, salt, and rain to withstand the natural elements that are a part of long-term training.

UNIQUE DESIGN

The yellow Action button gives a decisive accent color to the matte grey-green case, showing the concentrated effort needed at the exact moment the race demands it.

SPECIAL EDITION SILICONE BAND

The same comfortable silicone, now engraved with Suguru's personal mantra, “Now Or Never”.

BOLD AND BRIGHT

The 1.2-inch touchscreen AMOLED display features a tapered edge and crystal clear visibility.

BIG BATTERY LIFE

Enough hours to get you through long training days, marathons, and more.

19 days Daily use; 41 hrs GPS hours

ADVANCED TRAINING TOOLS

Download free workouts and training plans, see your training trends, and analyze your data post-run, all in the COROS app.

Race Predictor

See your predicted finish times for common race distances based on your current fitness level.

Personalized Marathon Plans

Choose a goal time and intensity level, and COROS will design a training plan customized to your current fitness.

Virtual Pacer

Set a target distance and time, and receive real-time alerts if you're ahead or behind pace.

BUILT-IN MIC

Use the built-in microphone to set reminders, start a workout, and capture voice notes mid-run.

*Voice Control currently available in English and Chinese.

RECOVERY AND HEALTH HUB

Track detailed metrics like recovery time, sleep stages, HRV, and menstrual cycles to understand how your body is responding to training.

WHAT'S IN THE BOX

*USB-C charging cable not included

All battery claims depend on feature usage such as music, backlight, navigation, and many other factors; actual results will vary. Lithium-ion batteries have limited recharge cycles and may show degradation over time. Battery life and charge cycles vary by use and settings. View our Battery Specifications for more detailed information.

FAQ's

Can PACE 4 track VO2 max and other advanced running metrics?

Yes. COROS PACE 4 calculates your VO₂ Max, Lactate Threshold, Running Fitness Level, and other advanced metrics to help you measure performance progress over time. These insights are powered by your training history, pace, and heart rate data, giving you a detailed picture of your endurance and recovery capacity.

Does PACE 4 measure heart rate reliably while running?

Absolutely. PACE 4 uses a redesigned optical heart rate sensor with larger LEDs and a more secure fit to reduce data spikes and drops during movement. Whether you’re doing intervals or long runs, you’ll get accurate and consistent heart rate readings directly from your wrist, or you can pair an external Bluetooth heart rate strap for even higher precision.

Can I train with intervals, splits, and running power on PACE 4?

Yes. The COROS app and PACE 4 make it easy to create interval workouts, structured training sessions, and running power-based plans. You can customize intervals, rest periods, and target zones—or sync detailed workouts from TrainingPeaks or Final Surge directly to your watch.

How long will PACE 4’s battery last on long training runs or race day?

PACE 4 delivers up to 41 hours of continuous GPS tracking in All-Systems mode, enough for your longest training runs or marathons. For daily use—including workouts, notifications, and sleep tracking—you’ll get up to 19 days on a single charge.

Is PACE 4’s screen bright and easy to read outdoors?

Yes. The 1.2" AMOLED touchscreen offers vivid color, crisp definition, and auto-adjusting brightness that adapts instantly to sunlight or shade. Whether you’re on a pre-dawn run or a bright track session, the PACE 4 display stays clear and easy to read from any angle.

Can I follow routes and get turn-by-turn directions with PACE 4?

Yes. PACE 4 supports global topographic and landscape maps. You can create routes in the COROS app or sync from Strava, RideWithGPS, or Wikiloc for seamless route guidance on your wrist.

Will PACE 4 alert me if I go off course?

Yes. PACE 4 gives you real-time off-course alerts so you’ll know immediately if you stray from your planned route. Combined with breadcrumb navigation and precise GPS tracking, it helps you stay confident during long runs and races.

Can I listen to music with PACE 4?

Yes, PACE 4 includes onboard music storage for MP3 files, and you can control your phone's music or podcast playback directly from the watch. At this time, we do not directly support an integration with Spotify or Apple Music.

Can PACE 4 track my sleep?

Yes. PACE 4 tracks sleep stages (light, deep, REM) and measures heart rate variability (HRV) to help you understand recovery quality. You’ll see daily summaries and long-term trends in the COROS app, giving you actionable insight into how your body responds to training load and rest.

Is PACE 4 waterproof?

Yes. PACE 4 is rated to 5 ATM (50 meters), making it safe for swimming, rain, or sweat-heavy sessions. You can record pool and open-water swims, shower with it, or train in all weather without worry.

Specifications

Size and Weight

Display

Materials

Watch Band

Design

Connectivity

Durability

Battery

Memory

Geo Location

Navigation

Data Tracking

3rd Party Integration

System Languages

Supported Activity Modes