| Size and Weight | |||
|---|---|---|---|
| Dimensions | 41.9 x 41.9 x 11.7mm Height does not include the optical heart rate sensor | 43.0 x 42.8 x 12.8mm | 50.3 x 50.3 x 15.7mm |
| Weight | 39g With Silicone Band | 53g With Silicone Band | 89g With Silicone Band |
| 30g With Nylon Band | 42g With Nylon Band | 72g With Nylon Band | |
| Display | |||
| Display Size | 1.2 Inch | 1.2 Inch | 1.4 Inch |
| Display Resolution | 240 x 240 64 colors | 240 x 240 64 colors | 280 x 280 64 colors |
| Display Type | Touch Screen Always-On Memory LCD | Touch Screen Always-On Memory LCD | Touch Screen Always-On Memory LCD |
| Materials | |||
| Screen Material | Mineral Glass | Sapphire Glass | Sapphire Glass |
| Bezel Material | Fibre Reinforced Polymer | Grade 5 Titanium Alloy With PVD Coating | Grade 5 Titanium Alloy With PVD Coating |
| Cover Material | Fibre Reinforced Polymer | Titanium Alloy | Titanium Alloy With PVD Coating |
| Band Material | Silicone / Nylon | Silicone / Nylon | Silicone / Nylon |
| Watch Band | |||
| Width | 22mm | 20mm | 26mm |
| Installation Type | Quick Release | Quick Release | Quick Fit |
| Design | |||
| Buttons & Dials | Digital Dial | Digital Dial | Digital Dial Increased Size & Enhanced Durability |
| Back Button | Back Button | Back Button | |
| — | Dedicated Backlight Button | Dedicated Backlight Button | |
| Connectivity | |||
| Phone | Bluetooth | Bluetooth | Bluetooth |
| Accessories | Bluetooth | Bluetooth | Bluetooth |
| Data Sync | Wi-Fi / COROS App | Wi-Fi / COROS App | Wi-Fi / COROS App |
| Durability | |||
| Water Resistance | 5 ATM Suitable for surface water activities and not for diving | 5 ATM Suitable for surface water activities and not for diving | 10 ATM Suitable for surface water activities and not for diving |
| Working Temperature | -4°F to 122°F (-20°C to 50°C) | -4°F to 122°F (-20°C to 50°C) | -22°F to 122°F (-30°C to 50°C) |
| Storage Temperature | -4°F to 140°F (-20°C to 60°C) | -4°F to 140°F (-20°C to 60°C) | -22°F to 140°F (-30°C to 60°C) |
| Battery | |||
| Standard Full GPS (GPS/QZSS) | 38 Hours Connects to GPS and QZSS | 40 Hours Connects to GPS and QZSS | 127 Hours Connects to GPS and QZSS |
| 10 Hours (With Music) Connects to GPS and QZSS with offline music | 10 Hours (With Music) Connects to GPS and QZSS with offline music | 32 Hours (With Music) Connects to GPS and QZSS with offline music | |
| All Systems On (GPS, GLONASS, Galileo, Beidou, QZSS) | 25 Hours Connects to 5 satellite systems at the same time | 25 Hours Connects to 5 satellite systems at the same time | 89 Hours Connects to 5 satellite systems at the same time |
| 9 Hours (With Music) Connects to 5 satellite systems at the same time with offline music | 9 Hours (With Music) Connects to 5 satellite systems at the same time with offline music | 29 Hours (With Music) Connects to 5 satellite systems at the same time with offline music | |
| Dual Frequency (GPS, GLONASS, Galileo, Beidou, QZSS) | 15 Hours Connects to 5 satellite systems at the same time in dual frequency | — | 49 Hours Connects to 5 satellite systems at the same time in dual frequency |
| 7 Hours (With Music) Connects to 5 satellite systems at the same time in dual frequency with offline music | — | 23 Hours (With Music) Connects to 5 satellite systems at the same time in dual frequency with offline music | |
| Daily Use | 17 Days With daily and sleep tracking | 14 Days With daily and sleep tracking | 43 Days With daily and sleep tracking |
| 15 Days (With Daily Stress) Monitors your stress level throughout the day | 13 Days (With Daily Stress) Monitors your stress level throughout the day | 39 Days (With Daily Stress) Monitors your stress level throughout the day | |
| Charging Time | Less Than 2 Hours | Less Than 2 Hours | Less Than 2 Hours |
| Memory | |||
| Internal Memory | 4GB | 8GB | 32GB |
| Activity Memory | 500 Hours Estimates based on outdoor activities | 500 Hours Estimates based on outdoor activities | 500 Hours Estimates based on outdoor activities |
| Geo Location | |||
| Satellite Systems | GPS, GLONASS, Galileo, Beidou, QZSS | GPS, GLONASS, Galileo, Beidou, QZSS | GPS, GLONASS, Galileo, Beidou, QZSS |
| GNSS Chipset | All-Satellite Dual-Frequency | All-Satellite Single-Frequency | All-Satellite Dual-Frequency |
| Navigation | |||
| Map Layer | Breadcrumb | Landscape Pre-loaded Global Maps | Landscape Pre-loaded Global Maps |
| — | Topo Downloadable Regional Maps | Topo Downloadable Regional Maps | |
| Additional Features | Checkpoint | Checkpoint | Checkpoint |
| Back-To-Start | Back-To-Start | Back-To-Start | |
| Deviation Alert | Deviation Alert | Deviation Alert | |
| Touchscreen-Enabled Map Control | Touchscreen-Enabled Map Control | Touchscreen-Enabled Map Control | |
| Data Tracking | |||
| Sensors | Optical Heart Rate Monitor May not work over tattoos | Optical Heart Rate Monitor May not work over tattoos | Optical Heart Rate Monitor May not work over tattoos |
| Barometric Altimeter | Barometric Altimeter | Barometric Altimeter | |
| Accelerometer | Accelerometer | Accelerometer | |
| Gyroscope | Gyroscope | Gyroscope | |
| 3D Compass | 3D Compass | 3D Compass | |
| Thermometer Supports body temperature in training (with compatible accessory) | Thermometer Supports body temperature in training (with compatible accessory) | Thermometer Supports body temperature in training (with compatible accessory) | |
| Optical Pulse Oximeter | Optical Pulse Oximeter | Optical Pulse Oximeter | |
| — | Electrocardiogram Sensor | Electrocardiogram Sensor | |
| Training Features | Effort Pace A personalized metric that represents true effort when running | Effort Pace A personalized metric that represents true effort when running | 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 | EvoLab Recovery, fatigue, training load, race predictor, VO2 max, threshold zones and more metrics | 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 | Activity Alerts For cadence, distance, pace, heart rate, power and more metrics | Activity Alerts For cadence, distance, pace, heart rate, power and more metrics | |
| Basic/Advanced Interval Training | Basic/Advanced Interval Training | Basic/Advanced Interval Training | |
| Pre-planned Workouts | Pre-planned Workouts | Pre-planned Workouts | |
| Training Plans | Training Plans | Training Plans | |
| Running Fitness | Running Fitness | Running Fitness | |
| Resting Heart Rate | Resting Heart Rate | Resting Heart Rate | |
| Underwater Heart Rate | Underwater Heart Rate | Underwater Heart Rate | |
| Action Camera Control Supports select GoPro and Insta360 cameras | Action Camera Control Supports select GoPro and Insta360 cameras | Action Camera Control Supports select GoPro and Insta360 cameras | |
| Virtual Run | Virtual Run | Virtual Run | |
| Running Form Test Requires COROS POD/POD 2 | Running Form Test Requires COROS POD/POD 2 | Running Form Test Requires COROS POD/POD 2 | |
| Altitude Mode Regular evaluation of SpO2 and fitness when at high altitudes | Altitude Mode Regular evaluation of SpO2 and fitness when at high altitudes | Altitude Mode Regular evaluation of SpO2 and fitness when at high altitudes | |
| Touch Scroll Swipe to scroll data pages during training | Touch Scroll Swipe to scroll data pages during training | Touch Scroll Swipe to scroll data pages during training | |
| Daily Features | Daily Stress | Daily Stress | Daily Stress |
| Wellness Check | Wellness Check | Wellness Check | |
| Message/Call Alert Supports daily use and during training | Message/Call Alert Supports daily use and during training | Message/Call Alert Supports daily use and during training | |
| Sleep With REM tracking | Sleep With REM tracking | Sleep With REM tracking | |
| Alarm | Alarm | Alarm | |
| Timer | Timer | Timer | |
| Stopwatch | Stopwatch | Stopwatch | |
| Daily Alerts Include active calories, exercise time, storm and more alerts | Daily Alerts Include active calories, exercise time, storm and more alerts | Daily Alerts Include active calories, exercise time, storm and more alerts | |
| Updateable Firmware With Wi-Fi and the COROS app | Updateable Firmware With Wi-Fi and the COROS app | Updateable Firmware With Wi-Fi and the COROS app | |
| Find My Phone | Find My Phone | Find My Phone | |
| Find My Watch | Find My Watch | Find My Watch | |
| Backlight Always-On Mode | Backlight Always-On Mode | Backlight Always-On Mode | |
| — | HRV Index | HRV Index | |
| Music Plays offline music when paired with supported Bluetooth headsets | Music Plays offline music when paired with supported Bluetooth headsets | 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 Click here for a complete list | Nike Run Club, Komoot, TrainingPeaks, Strava, Relive, adidas Running, Apple Health, Stryd, Final Surge, Runalyze, Running Quotient, Decathlon Click here for a complete list | Nike Run Club, Komoot, TrainingPeaks, Strava, Relive, adidas Running, Apple Health, Stryd, Final Surge, Runalyze, Running Quotient, Decathlon Click here for a complete list |
| System Languages | |||
| Display Language | English, Simplified Chinese, Traditional Chinese, German, Spanish, French, Polish, Thai, Japanese, Korean, Portuguese, Italian, Russian | English, Simplified Chinese, Traditional Chinese, German, Spanish, French, Polish, Thai, Japanese, Korean, Portuguese, Italian, Russian | English, Simplified Chinese, Traditional Chinese, German, Spanish, French, Polish, Thai, Japanese, Korean, Portuguese, Italian, Russian |
| Supported Activity Modes | |||
| Run | Run | Run | Run |
| Indoor Run | Indoor Run | Indoor Run | |
| Track Run | Track Run | Track Run | |
| Trail Run | Trail Run | Trail Run | |
| Climb | — | — | Outdoor Climb Enhanced data tracking for multi-pitch and big wall climbing |
| — | Indoor Climb Supports indoor lead, top rope, and bouldering with route/fall auto-count | Indoor Climb Supports indoor lead, top rope, and bouldering with route/fall auto-count | |
| — | Mountain Climb | Mountain Climb | |
| Bike | Bike | Bike | Bike |
| Indoor Bike | Indoor Bike | Indoor Bike | |
| Water | Open Water | Open Water | Open Water |
| Pool Swim | Pool Swim | Pool Swim | |
| Flatwater | Flatwater | Flatwater | |
| Rowing | Rowing | Rowing | |
| — | Whitewater | Whitewater | |
| — | Speedsurfing | Speedsurfing | |
| — | Windsurfing | Windsurfing | |
| Winter | Ski | Ski | Ski |
| Snowboard | Snowboard | Snowboard | |
| XC Ski | XC Ski | XC Ski | |
| — | Ski Touring | Ski Touring | |
| Cardio | GPS Cardio | GPS Cardio | GPS Cardio |
| Gym Cardio | Gym Cardio | Gym Cardio | |
| Hike | Hike | Hike | |
| Indoor Rower | Indoor Rower | Indoor Rower | |
| Walk | Walk | Walk | |
| Jump Rope | Jump Rope | Jump Rope | |
| Special | Triathlon | Triathlon | Triathlon |
| Multisport | Multisport | Multisport | |
| Strength | Strength | Strength | |
| Training | Training | Training | |
| Training Plan | Training Plan | Training Plan |
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.