W337 Introduction to Watch Sensor Functions

Bluetooth & Wi-Fi

The watch features Bluetooth capabilities enabling Standby/Connection, Data Transfer, Accessory Connectivity, and Music Playback.

Data Synchronization:

  1. Syncs workout data and health metrics in real-time with the COROS app on your phone via Bluetooth.

  2. Connects directly to COROS servers via Wi-Fi to upload workout records/health data or download map updates.

  3. Use Case: Backs up data independently, without needing a phone as a relay.

Bluetooth Headphone Connection:

  Supports connecting Bluetooth headphones for music playback (headphones must support standard Bluetooth protocols).

Accessory Connectivity:

  1. Sensors: Connects to Bluetooth accessories like heart rate straps, power meters, cadence sensors, bike trainers, and rowing machines.

  2. Dedicated Devices: Supports connection to COROS POD/POD 2 and heart rate armbands.

  3. Camera Control: Connects to and controls GoPro & Insta360 cameras via Bluetooth.

Health Monitoring:

  Connect a Bluetooth heart rate armband to enhance heart rate monitoring accuracy (especially during intense exercise).

Message Notifications:

  Push notifications from your phone to the watch (requires active Bluetooth connection).

Maps:

  Download offline map resources like topographical maps and contour maps (requires Wi-Fi connection).

Software Updates:

  Download and install firmware updates via Wi-Fi to optimize functionality and performance.

GPS Satellite Positioning

Function Description:

  Utilizes Multi-Band Multi-GNSS technology (GPS/GLONASS/GALILEO/BeiDou/QZSS) for precise activity tracking and navigation (e.g., hiking, cycling, trail running, swimming, climbing).

Operation Path:

  Start an outdoor activity (e.g., hike/cycle) → GPS activates automatically.

  View real-time track during activity: Long-press the 4 o'clock button → Touch screen or rotate crown → Select the "Map" tab.

Features:

  Dual-band All-Satellite System GPS for independent positioning (no phone needed).

  Track Back function (retrace your route if you get lost).

PPG Heart Rate Sensor

Function Description:

  Employs a multi-channel optical sensor for 24h continuous heart rate monitoring and blood oxygen saturation (SpO2) measurement.

Application Scenarios:

  1. Automatic Monitoring: Records heart rate once per minute during rest.

  2. Real-time Heart Rate Alerts: Provides warnings during exercise for abnormally high/low heart rates.

  3. Sleep Quality Analysis: Identifies four sleep stages: Awake, Deep Sleep, Light Sleep, and REM.

  4. All-day Stress Assessment: Automatically monitors stress levels hourly after determining a resting state.

  5. Blood Oxygen (SpO2): Monitors altitude adaptation.

  Wearing Requirement: Wear the watch snug against the skin.

ECG Heart Rate Sensor

Function: HRV (Heart Rate Variability) Measurement.

Usage:

  1. Wear the watch normally.

  2. The metal crown acts as an ECG electrode.

  3. Lightly touch the metal crown with a finger from your other hand.

  4. Generates an HRV measurement report.

Data Application:

  Quick Health Check.

Motion Sensor Group (Gyroscope & Acceleration sensor)

Collaborative Functions:

  Activity Recognition: Helps identify activity states like running, swimming, and cycling.

  Gesture Control: Raise-to-wake screen display.

Barometric pressure sensor

Core Uses:

  1. Real-time altitude measurement (for hiking/skiing scenarios), measuring elevation and ambient pressure changes.

  2. Storm Alert (notification for sudden pressure drops).

  3. Weather prediction based on pressure changes over the last 24 hours.

Derived Functions:

  Elevation Gain / Floor Climb Count.

  Altitude Adaptation Guidance.

Capacitive wearing sensor

Mechanism:

  Detects skin contact to determine if the device is being worn.

Smart Integration:

  Pauses health monitoring when not worn (to conserve battery).