Coros

2026 UPDATE

Between 2020 and 2025, COROS and GPS-Speedsurfing.com worked closely together to develop dedicated firmware functionality specifically for speedsurfing. This collaboration initially resulted in a dedicated release for the COROS APEX Pro and VERTIX 1, and was later extended to the APEX Pro 2 and VERTIX 2/2S.After 2025, the cooperation ended as COROS reprioritised its target markets and product development.During 2024, some significant firmware issues were introduced that affected the reliability of speedsurfing data on the older APEX Pro and VERTIX 1. As a result, these devices will no longer meet the requirements for full approval on GPS-Speedsurfing.com from 1 January 2027.

This does not mean that sessions recorded with the APEX Pro or VERTIX 1 can no longer be uploaded or used. However, from 1 January 2027, sessions from these devices will receive a lower classification within the GPS-Speedsurfing.com ranking system.The newer COROS APEX Pro 4 and NOMAD are currently also not compliant with the GPS-Speedsurfing.com requirements. An initial assessment of the available data quality and algorithms used by these devices indicates that they cannot be approved in the short term without additional improvements by COROS.

From 1 January 2027, the only fully approved COROS devices on GPS-Speedsurfing.com will be the APEX Pro 2 and VERTIX 2/2S.
GPS-Speedsurfing.com remains open to future improvements and renewed cooperation with COROS if the necessary data quality and algorithmic requirements can be met.

How can I synchronize tracks from the Coros App directly to GPS-Speedsurfing.com ?

Please setup the Coros devices following the standard procedure provide by the manufacturer. After you have successfully signed up for the Coros platform you can connect this to GP3S, this is a one- time only setup procedure, when successfully connected every session recorded in WINDSURFING or SPEEDSURFING mode from your Coros will be pushed to GP3S. After that you can add gear, equipment, sessions details, etc with the normal posting procedure at GP3S.   An in depth step-by-step guide how to setup a Coros device the right way for GPS-Speedsurfing.com, please check it out here -> https://logiqx.github.io/gps-guides/guidance/coros/

Can I do a manual upload from my Coros watch to GPS-Speedsurfing.com ?

When you chose not to connect the platforms you have to manually upload the session, please export your track to .FIT and follow the standard upload procedure as described at GPS-Speedsurfing.com . For the best and most accurate results we advise you to use the automated synchronization procedure as described above. 

Are there any specific settings / install needed before using the Coros ?

After installing the Coros Watch by the standard procedure from Coros all features are installed by default, you have choose SPEEDSURFING as workout mode. In general it's good to use the GPS/QZSS setting (can be changed SYSTEM, MORE SETTINGS, MODE...)-> https://youtu.be/a6jI8dON5OI