
Dimensions and weight
- Size: 47.8 x 47.8 x 16.4 mm
- Body weight: 41.5 g
- Weight with silicone band: 61 g
- Weight with nylon band: 49 g
- Band width: 24 mm quick-release
- Wrist size compatibility: Silicone Medium 130 to 210 mm (included). Not included Nylon 150 to 220 mm (not included), Silicone L 150 to 240 mm (not included)
Display and materials
- Display: 1.3 inch 260 x 260 MIP High Contrast touchscreen
- A new high-contrast Memory-In-Pixel display improves color saturation and ensures clear visibility in bright sun or low light, without sacrificing battery life.
- Lens: Hardened mineral glass
- Bezel and case back: High-strength polymer with dual layer aluminium alloy
- Controls: Digital dial, back button, action key, touchscreen

Battery and charging
- All Systems GPS: Up to 50 hours
- Dual-frequency GPS: Up to 34 hours
- Daily use: Up to 22 days with sleep, stress, and all-day HR
- Charging time: About 1.5 hours
Navigation and maps
- Global maps with street names, waypoints, and save locations are all powered by a new Gen 3 processor for faster, more responsive mapping.
- Map types: Landscape maps with street names and POIs, plus Topo maps
- Navigation: Turn-by-turn, waypoints, Back-to-Start, save Pins
GNSS
- Systems: GPS, GLONASS, Galileo, BeiDou, QZSS
- Dual-frequency GPS: L1 + L5
Durability
- Waterproof rating: 5 ATM (50 Metres)
- Operating temperature: −20 to 50 °C
Sensors
- Optical heart rate (PPG)
- Barometric altimeter
- Accelerometer
- Gyroscope
- Electronic compass
- Temperature sensor
- Pulse oximetry (SpO2)
- ECG hardware
- Dual microphone with noise reduction
Connectivity and storage
- Bluetooth and Wi-Fi sync to COROS app and cloud
- Music: 32 GB storage and Bluetooth headphone support
- Accessory support via Bluetooth: COROS POD/POD 2, COROS and third-party heart rate straps, gym equipment, power meters, smart trainers, bike speed and cadence sensors
- Camera control: GoPro and Insta360
- No ANT+ support
Training and health
- EvoLab training suite with Running Fitness Test and FTP Test
- Training Load and recommendations
- Recovery time and Effort Pace
- Resting heart rate, HR broadcast, metronome
- Training plans and structured workouts
Daily features
- Voice Pins for location-tagged notes
- Steps, calories, exercise time
- Sleep tracking and all-day stress
- Message and call notifications
- Always-on screen option
- Weather and environmental weather tracking for focus locations
- Find my phone and Find my watch
- Alarms, stopwatch, timers
- Safety alert
Third-party integrations
Strava, TrainingPeaks, Relive, Wikiloc, Apple Health, Google Health, Final Surge, Stryd and more.
Sport modes
Running: Road, Trail, Track, Indoor. Climbing: Outdoor, Mountain, Indoor, Bouldering. Walking and Hiking. Cycling: Road, Gravel, MTB, Indoor. Swimming: Pool and Open Water. Water sports: Rowing and Indoor Rowing, Flatwater, Whitewater, Windsurfing, Speedsurfing. Aerobic and Gym: GPS Cardio, Indoor Cardio, Jump Rope, Stair Climb, Elliptical, Yoga, Pilates, Boxing, Badminton, Table Tennis, Basketball, Football. Snow: Ski, Snowboard, XC Ski, Ski Touring. Fishing: Fly, Lure, Boat, Shore, Inshore, Offshore, Kayak, Surf, plus specific fly variants. Multisport and Triathlon, Workout, Custom Activity.
Languages
English, German, Spanish, French, Polish, Thai, Japanese, Korean, Portuguese, Italian, Russian, Simplified and Traditional Chinese.