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| Size and Weight | |||
|---|---|---|---|
| Dimensions | 41.9 x 41.9 x 11.7mm Height does not include the optical heart rate sensor | 46 x 46 x 12.25mm Height does not include the optical heart rate sensor | 46.1 x 46.5 x 14mm |
| Weight | 39g With Silicone Band | 49g With Silicone Band | 66g With Silicone Band |
| 30g With Nylon Band | 37g With Nylon Band | 53g With Nylon Band | |
| Display | |||
| Display Size | 1.2 Inch | 1.3 Inch | 1.3 Inch |
| Display Resolution | 240 x 240 64 colors | 416 x 416 Full colors | 260 x 260 64 colors |
| Display Type | Touch Screen Always-On Memory LCD | Touch Screen Always-On AMOLED Display | Touch Screen Always-On Memory LCD |
| Materials | |||
| Screen Material | Mineral Glass | Mineral Glass | Sapphire Glass |
| Bezel Material | Fiber Reinforced Polymer | Fiber Reinforced Polymer | Grade 5 Titanium Alloy With PVD Coating |
| Cover Material | Fiber Reinforced Polymer | Fiber Reinforced Polymer | Titanium Alloy |
| Band Material | Silicone / Nylon | Silicone / Nylon | Silicone / Nylon |
| Watch Band | |||
| Width | 22mm | 22mm | 22mm |
| Size - Nylon | 135mm - 205mm (Standard) 150mm - 235mm (Long) | 140mm - 220mm | 145mm - 220mm (Standard) 130mm - 195mm (Short) |
| Size - Silicone | 130mm - 215mm | 130mm - 220mm | 145mm - 220mm |
| Installation Type | Quick Release | Quick Release | Quick Release |
| Design | |||
| Buttons & Dials | Digital Dial | Digital Dial | Digital Dial |
| Back Button | Back Button | Back 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 | 5 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) | -4°F to 122°F (-20°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) | -4°F to 140°F (-20°C to 60°C) |
| Battery | |||
| Standard Full GPS (GPS/QZSS) | 38 Hours | — | 66 Hours |
| 10 Hours With offline music playing | — | 18 Hours With offline music playing | |
| All Systems On (GPS, GLONASS, Galileo, Beidou, QZSS) | 25 Hours | 38 Hours 28 Hours (With Always-On Display) | 41 Hours |
| 9 Hours With offline music playing | 13 Hours 11 Hours (With Always-On Display) With offline music playing | 15 Hours With offline music playing | |
| Dual Frequency (GPS, GLONASS, Galileo, Beidou, QZSS) | 15 Hours | 31 Hours 24 Hours (With Always-On Display) | 24 Hours |
| 7 Hours With offline music playing | 12 Hours 10 Hours (With Always-On Display) With offline music playing | 12 Hours With offline music playing | |
| Daily Use & Sleep Tracking | 15 Days With all-day stress monitoring | 20 Days 6 Days (With Always-On Display) With all-day stress monitoring | 21 Days With all-day stress monitoring |
| Charging Time | Less Than 2 Hours | Less Than 2 Hours | Less Than 2 Hours |
| Memory | |||
| Internal Memory | 4GB | 32GB | 32GB |
| Activity Memory | 1200 Hours Estimates based on outdoor activities | 1200 Hours Estimates based on outdoor activities | 1200 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 Dual-Frequency | All-Satellite Dual-Frequency |
| Navigation | |||
| Map Layer | Breadcrumb | Landscape Downloadable Global Maps | Landscape Downloadable 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 Pacer | Virtual Pacer | Virtual Pacer | |
| 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 | |
| Extender | Extender | Extender | |
| 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 | Always-On Display | Backlight Always-On Mode | |
| HRV | HRV | HRV | |
| 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, Vietnamese | English, Simplified Chinese, Traditional Chinese, German, Spanish, French, Polish, Thai, Japanese, Korean, Portuguese, Italian, Russian, Vietnamese | English, Simplified Chinese, Traditional Chinese, German, Spanish, French, Polish, Thai, Japanese, Korean, Portuguese, Italian, Russian, Vietnamese |
| 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 | |
| — | — | Mountain Climb | |
| — | — | Bouldering | |
| Bike | Bike | Bike | Bike |
| Indoor Bike | Indoor Bike | Indoor Bike | |
| Gravel | Gravel | Gravel | |
| Mountain Bike (MTB) | Mountain Bike (MTB) | Mountain Bike (MTB) | |
| Water | Open Water | Open Water | Open Water |
| Pool Swim | Pool Swim | Pool Swim | |
| Flatwater | Flatwater | Flatwater | |
| Rowing | Rowing | Rowing | |
| — | — | Whitewater | |
| — | — | Speedsurfing | |
| — | — | Windsurfing | |
| Winter | Ski | Ski | Ski |
| Snowboard | Snowboard | Snowboard | |
| XC Ski | XC Ski | XC Ski | |
| — | — | 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 |
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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.