After connecting your COROS watch to the COROS mobile app, you can check your warranty by doing the following.
*Once you connect your watch to the COROS app your warranty will be automatically activated*
1. Navigate to (https://us.coros.com/login)
2. Log in to the Web Portal using the same information used to log into the COROS mobile app
3. Locate the warranty date for any COROS products registered to your account