Product Supplementary Manual
Product Information
| Field | Information |
| Brand | COROS |
| Product Name | COROS PACE 4 Pro |
| Model or Type Designation | W337 |
This supplementary manual describes the external sensors of the COROS product identified above, together with the network interfaces and network services available in its factory default state.
External Sensors
The following sensors can detect information about the user or the external environment.
| No. | Sensor Name | Function Description |
| 1 | GPS | Obtains location information. |
| 2 | PPG | Monitors heart rate, blood oxygen, and related physiological information. |
| 3 | Microphone | Supports phone calls, voice commands, and voice markers. |
Network Interfaces and Network Services
The following network interfaces and network services are available in the factory default state.
| No. | Network Interface or Service | Factory Default State | Description |
| 1 | Wi-Fi | Not available | Used for firmware updates, file downloads, and related functions. |
| 2 | BLE (DIS / BAS / HRS / RSCS / User Service) | Available | Used for communication with the COROS App. |
| 3 | BT (A2DP / AVRCP / HFP) | Available | Used for music playback and control, and for Bluetooth calls. |