Information Density: COROS – Signal Evidence & AI Readability

COROS PACE 4CLOUD WHITEThe Ultralight Aluminum AMOLED GPS Sport Watch.SHOP NOWCOROS PACE 4JAKOB INGEBRIGTSENThe ultralight AMOLED GPS watch, inspired by the world's best.Learn MoreSHOP NOWCOROS PACE 4BLACK CRYSTALAn aluminum version of our ultralight AMOLED
GPS watch.SHOP NOWCOROS APEX 4A performance GPS watch built for racing and training in the mountains.Learn MoreSHOP NOWCOROSNOMADYour go-anywhere, do-anything adventure watch.Learn MoreSHOP NOW
[H2] COROS PACE 4
The ultralight AMOLED GPS sport watch made to help you train smarter.Learn More
[H2] COROS HR Monitor
Precise data from the
comfort of your arm.Learn More
[H2] COROS APEX 4
A performance GPS watch built for racing and training in the mountains.Learn More
[H2] COROS VERTIX 2S
For athletes who
want it all.Learn More
[H2] COROS PACE Pro
For multi-sport athletes who seek precision, performance and clarity.Learn More
[H2] COROS DURA
For your biggest
riding goals.Learn More
[H2] SHOP BY SPORT
ROAD
RUNNINGCLIMBINGTRAIL
RUNNINGCYCLINGLearn MoreLearn More
[H2] TRAINING
PLANS &
WORKOUTS
Smarter sessions and stronger results, with plans made by coaches, proven by athletes.Discover MoreBeginner Half-Marathon Training Plan - PaceHalf Marathon HR PlanBeginner Half-Marathon Training Plan - HR4:00-4:30 12-Week Marathon Plan100-Miles Cycling Training PlanRun Speed Development4min VO2 Max Ride - IntermediateCore Workout5k Speed ImprovementProgression Run - Fast FinishProgressive Onsite Bouldering WorkoutFull Body - Eccentric/Isometric Workout
[H2] TRAINING HUB
Designed for more even detail. Plan your workouts, analyze past sessions, and see the full details of your training journey.Learn MoreLogin
[H2] COROS STORIES
View All StoriesCOROS COACHES
[H3] What COROS Data Revealed About the 2026 London Marathon
Sharing the roads with history were thousands of COROS athletes. Their data reveals a story worth telling.04/30/20265 min readMORE THAN SPLITS
[H3] Rachel Entrekin Smashes Cocodona 250 Course Record
253.8 miles. 40,000 feet of elevation gain. 19 minutes of total sleep. One beloved Queen. (Header Photo by Somer Kreisman)05/07/20267 min readPRESS RELEASE
[H3] COROS and Wahoo Partner to Give Athletes More Control Over Their Data
This partnership enables COROS Watches to receive data from the KICKR RUN Treadmill, and send completed activities from one app to the other04/24/20262 min readPRESS RELEASE
[H3] COROS Releases Jakob Ingebrigtsen PACE 4
05/12/20262 min readAPP & SOFTWARE
[H3] May 2026 Feature Update
Voice Control, Custom Photo Sharing, Strength Updates05/15/20264 min readMORE THAN SPLITS
[H3] The Algorisme - Pace Strategy
How Kilian Jornet’s work inspired COROS’ latest feature04/01/20265 min read
[H2] STAY IN TOUCH
Subscribe for product arrivals, software updates, and more.By clicking Subscribe, you agree to receive emails from COROS and confirm that you have read our Privacy Policy.WarrantyIndustry Leading Global WarrantyShipping & ReturnsFree U.S. shipping at $35+ and 30-day money back guaranteeRepair ProgramRepairs at an affordable price, with minimal downtime. Training SystemIntegrates COROS Training Hub, coaching, plans, workouts with apps

THE ULTIMATE MOUNTAIN SPORTS WATCH BUILT FOR TRAINING,
RACING, AND BEATING YOUR PERSONAL BEST.BUY NOWWatch VideoShaped by years of relentless development and insight from the world’s
best mountain athletes, APEX 4 delivers ultra-precise GPS, best in class
battery, zero-lag mapping, a microphone and speaker, plus advanced training and recovery tools to help you take on your biggest goals.
[H2] ALPINE-GRADE ENGINEERING
LIGHTWEIGHT TITANIUM. REINFORCED LUGS. SAPPHIRE GLASS.01Grade 5 Titanium Bezel 02Reinforced Lugs add strength
and create a lightweight,
comfortable feel51g (46mm) and 44g (42mm)
with the nylon band03Scratch-Resistant Sapphire Glass3rd-Generation Memory-in-Pixel screen
[H2] RAZOR-SHARP ACCURACY, WITHOUT LIMITS
APEX 4 delivers industry-leading accuracy
across GPS, pace, heart rate, and elevation
tracking, along with the ultra-long battery life
you have come to expect from COROS.MORE DETAILED MAPSLANDSCAPETOPOGRAPHICTURN-BY-TURNTRAIL AND STREET NAMESTwo map layers with 15m zoom plus trail and street names keep you oriented on trails, in the city, or on the slopes.Elevation Calibrated for rapid weather changes and steep, technical terrain. - Dual-range barometer 30xFaster map and graphic
rendering speeds.GPS Precision that holds true in dense forests, steep couloirs, and sheer alpine walls. Battery Long enough to last 100 miles around Mont Blanc,
or linking up the Grand Traverse. APEX 4 (46mm)65HRSAPEX 4 (42mm)41HRS+ Vertical GPS Algorithms for challenging environments *Endurance Satellite Mode1MicrophoneRecord Voice Pins to capture beta on the
wall or save a note-to-self during your long
run to help be better prepared next time.IN PLAIN SIGHT APEX 4's 3rd generation always-on MIP
display delivers deeper colors, stays
sharp in full sun, deep snow,
and shadows. SpeakerTake hands-free calls and
listen to your activity alerts
out loud.
[H2] WHERE ENDURANCE MEETS ALTITUDE
Mountain sports have unique demands.
APEX 4 has been designed to meet all of them.LONG RUN READYFrom your first trail race to your next 100-mile
win, APEX 4 provides on-device global maps,
3D terrain views, real-time Effort Pace¹, route
planning, and fitness metrics designed to help
you track your training.
EFFORT PACE Effort Pace tells you your equivalent pace on flat terrain
so you know when to push, and when to dial back.
GLOBAL MAPS Landscape and Topo map layers with street and trail names
give you the information you need when you need it,
even without cell service.
NAVIGATION Turn-by-Turn directions, street names, POI's and
Back to Start make sure you always know where
you're headed, and where you've been.
RUNNING FITNESS Find out Race Prediction times, and what zones to
train in to improve specific abilities whether you're prepping
for an ultra, or your next 5k all-out effort.
[H2] MOUNTAIN SPORT TRAINING SYSTEM
APEX 4 and the COROS app form a connected training system built for athletes who want to improve.Training StatusTraining LoadBase FitnessTraining Status tells you if you’re building, maintaining, or overreaching—so you stay in control across every season. Training Load tracks how much work you’ve put in across runs, rides, climbs, and touring.Base Fitness shows your long-term aerobic fitness.
[H2] RECOVERY AND
READINESS HUB
[H2] SLEEP
Track your total sleep time, sleep phases, sleep quality, and naps.
[H2] HRV
Check your overnight HRV to see how your body is responding to training and stress.
[H2] DAILY STRESS
Track your body’s stress levels with a simple 1–100 score
[H2] RECOVERY TIMER
Recovery Timer shows when your body is ready for easy or hard training, helping you balance rest and effort.
[H2] TOOLS FOR
THE ASCENT
Accurate data, zero-lag mapping, and
incredible battery set you up for success,
no matter the task at-hand.YOUR ADVENTURE JOURNAL Adventure Journal logs Voice Pins,
terrain photos, and key details from your
effort so you can review what you saw,
said, and did. Plan better lines, adjust
your strategy, and leverage more recon
for your next big goal.LONGER BATTERY APEX 4 pairs an always-on, 3rd-gen MIP display with
deeper colors and higher contrast—built to stay clear
in sun, snow, or shadows.
With up to 65 hours of All Systems GPS (46mm) or
41 hours (42mm), you'll have full confidence in your
watch whether it's linking up the Grand Traverse, or
the full loop around Mont Blanc. VERTICAL GPS TRACKING With our most accurate vertical GPS algorithm yet,
dual-frequency tracking, a precision heart rate sensor,
and a dual-range barometer for sharper elevation and
weather data, you won't have to worry about any missing meters when your activity is finished. FAST MAPPING APEX 4’s real-time map engine renders instantly—delivering
global landscape and topo maps with
turn-by-turn guidance, trail names, and POIs. BUILT-IN VOICE TOOLS Take hands-free calls, record Voice Pins, or have
your activity alerts played out-loud so you never
have to break your attention.
[H2] THE EVOLUTION OF APEX
Explore APEX through the years. APEX OCT 2018APEX Pro SEP 2019APEX 2 NOV 2022APEX 4 OCT 2025
[H2] HELP ME CHOOSE
Which watch is right for you? What You Do Road running, track intervals, triathlons, and racing. Multi-day hikes, off-grid adventures, fishing trips, and outdoor journaling. Trail running, ski touring, alpine climbing, and steep vertical training. Ultramarathons, mountaineering, big expeditions. Who You Are A runner, triathlete, or cyclist chasing speed and simplicity. A weekend warrior who thrives off the grid—fishing, hiking, camping. A mountain athlete training with purpose and precision. An ultra-endurance athlete who needs a watch that goes the distance, and further. Built For Lightweight feel, GPS accuracy, high-performance, daily wear. Rugged design, environmental awareness, and a mic for Voice Pins. Titanium bezel, sapphire glass, speaker + mic, climbing carabiner. Full-metal case, best-in-class battery, extreme weather durability. Made to Support Fast workouts, structured road/triathlon training, running specific features. Journal your trips, log Voice Pins, revisit routes and moments. Climb, ski and trail running, route planning, and performance tracking. Ultra-marathon specific training, multi-day (or week) projects, massive battery life, expedition planning.
[H2] Sync, Connect and
Control
Easily link to apps like Strava and Apple Health, stay updated with calls
and texts, and control your camera—all from your watch.
[H2] 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.

[H1] Accessories
BandsChargersMountsApparel & LifestyleGift Card

THE ULTRALIGHT AMOLED GPS WATCH
DESIGNED TO HELP YOU TRAIN SMARTER AND RUN FASTER.BUY NOWPERSONAL BY DESIGNChoose from a range of colors like Black Crystal and Cloud White, or customize the standard PACE 4 with any color of nylon or silicone band.Standard WhiteA clean, streamlined version of the PACE 4 featuring a durable fiber-reinforced polymer bezel.THE SPEED OF LIGHTCreated for athletes looking for performance, speed, and simplicity,
COROS PACE 4 combines ultralight engineering, long battery life,
advanced training tools, and increased accuracy to help everyone
from elite racers to first-timers discover their potential.ULTRALIGHT TECHNOLOGYAt just 32 grams with the nylon band, PACE 4
is lighter than the gel tucked into your pocket.AMOLED AT ITS BESTThe 1.2" color touchscreen AMOLED display features a tapered edge for crystal-clear definition, smooth swipes, and a seamless finish—now with 164% higher resolution for the sharpest display yet.TWO-TONE DESIGNA low profile, two-tone body that stays
secure on your wrist. Plus a flexible,
easy-to-adjust silicone band.BIG BATTERY LIFEWith 41 GPS hours and 19 days of daily use, ensure
your training isn’t tied to a charger.PACE 3+16HRSPACE Pro+3HRS*using HIGH (All Systems) GPS ModeVOICE FEATURES:
A NEW WAY TO TRAINUsing PACE 4's voice recording tool, capture training logs
at the completion of your activity to remember
all the details from your session.DROP A PINRecord Voice Pins about where you were,
what you saw, and how you felt during
your workouts.TRAIN SMARTER. RUN FASTER.Track running fitness, build workouts, and test
your limits with tools that support your training.PACE IS PROGRESS
[H2] EASY ON THE EYES
The 1.2" touchscreen AMOLED display keeps colors
vibrant and lines sharp, with auto-adjusting brightness
that ensures the screen is easy to read in all environments. 164% Higher resolution display
compared to PACE 3AMOLED1.2" touchscreen
AMOLED display
[H2] LONG RUN READY
0HRSon a single chargeWith 41 GPS hours on a single charge, enjoy up
to 19 days of daily training and sleep
before needing a charge.0DAYSContinuous Daily Use0HRSAll Systems (High) GPS Mode
[H2] EASIER CHARGING
Only carry one cable to quickly charge PACE 4
with the USB-C charging adapter.
[H2] FAST AND LIGHT
At 11.8mm thin, it's the most comfortable
AMOLED GPS watch that wears easily all-day and night. 32gwith nylon band40gwith silicone bandTwo easy-to-reach buttons, a super smooth touchscreen and a tactile digital dial
make controlling your watch simple, even mid-stride.
[H2] EFFORTLESS CONTROL
Use the Action Button to switch from your main
data screens to media controls, breadcrumb
navigation, or to record Voice Pins.
[H2] MAKE IT YOURS
Change the look and feel with bands that fit
your style and your training.SILICONE BANDThe soft and flexible silicone band provides all-day comfort
and is easy to dry, with a quick button fastening for easy adjustment.NYLON BANDFor an even lighter weight and feel, nylon bands give you a breathable, sweat-wicking band that's simple to adjust mid-run.
[H2] TOOLS TO HELP YOU IMPROVE
Race predictions, personalized marathon plans,
a virtual pacer, and breadcrumb navigation let you know
where you stand and where to go next.
[H2] RACE PREDICTOR
[H2] PERSONAL MARATHON PLANS
[H2] VIRTUAL PACER
[H2] RECOVERY AND WELLNESS HUB
Track recovery time, sleep stages, HRV, and menstrual cycles
to understand how your body’s responding and
adjust training accordingly.BUILT-IN MICUse the microphone to save training notes or
capture voice notes mid-run. MEDIA CONTROLSSkip to the next song or podcast, adjust volume, and
more directly from your watch.DESIGNED TO GO
THE DISTANCEPrecision GPS, accurate heart rate, and software
updates that keep coming. PACE 4 is made to last,
lap after lap and season after season.
[H2] RELIABLE HEART RATE
A redesigned heart rate sensor with larger LEDs
and a more secure fit reduces spikes and
drops for actionable data.
[H2] MAXIMUM COMPATIBILITY
Sync routes from Strava, RidewithGPS, Wikiloc, or create
them directly in the COROS app. Follow structured workouts,
build your own training plan, and keep your community
close with instant data sync to your favorite platforms.
[H2] SIGNAL IN A SECOND
All-Systems and Dual-Frequency satellite modes
find and hold accurate signals fast, whether it's city
streets, dense trails, or open roads.
[H2] Explore the PACE series through the years
PACE 1MAY 2018PACE 2 AUG 2020PACE 3 SEP 2023PACE 4 NOV 2025
[H2] HELP ME CHOOSE
Which watch is right for you? What You Do Road running, track intervals, triathlons, and racing. Multi-day hikes, off-grid adventures, fishing trips, and outdoor journaling. Trail running, ski touring, alpine climbing, and steep vertical training. Ultramarathons, mountaineering, big expeditions. Who You Are A runner, triathlete, or cyclist chasing speed and simplicity. A weekend warrior who thrives off the grid—fishing, hiking, camping. A mountain athlete training with purpose and precision. An ultra-endurance athlete who needs a watch that goes the distance, and further. Built For Lightweight feel, GPS accuracy, high-performance, daily wear, and voice powered training tools.Rugged design, environmental awareness, and a mic for Voice Pins. Titanium bezel, sapphire glass, speaker + mic, climbing carabiner. Full-metal case, best-in-class battery, extreme weather durability. Made to Support Fast workouts, structured road/triathlon training, running specific features. Journal your trips, log Voice Pins, revisit routes and moments. Climb, ski and trail running, route planning, and performance tracking. Ultra-marathon specific training, multi-day (or week) projects, massive battery life, expedition planning.
[H2] 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.