Set up and starting using your COROS HYDROP in a few quick steps.
What's In the Box
COROS HYDROP comes with a USB-C to COROS A2 charging cable, case, and 3 eyelets.
Pair HYDROP to your COROS app
The first time you use HYDROP, you'll need to connect it to power via the included USB-C cable. Plug in the charging cable to the back of HYDROP and wait until you see an orange light flashing from the front of HYDROP.
- Open your COROS app to the Profile page (fourth tab). Select the Accessories menu, then click Add.
- Do not select "Add New Device" at the top of the Profile page. You will need to pair HYDROP through the Accessories menu.
- Wait for your phone to detect HYDROP and complete the pairing process.
Pair HYDROP to your COROS watch
*HYDROP is only compatible with COROS NOMAD, VERTIX 2, and VERTIX 2S. It is not compatible with other watch models or brands.
Once HYDROP is connected to your COROS app, it will be automatically added to your connected COROS watch. If you don't see HYDROP listed in your watch's Accessories menu or Toolbox menu, you can pair it manually by following these steps:
- On your COROS watch, long press the Back button to open the Toolbox menu
- Scroll to System > Accessories > Add Bluetooth
- Shake HYDROP a few times until you see the orange light flashing on the front of the device, indicating HYDROP is in pairing mode. Wait until your watch detects and pairs with HYDROP.
Once connected, your watch and HYDROP will automatically sync data each time you take a measurement with HYDROP.
Troubleshooting
- Ensure HYDROP is plugged in and actively charging. The orange light on the front of HYDROP should flash, indicating it's charging and ready to pair.
- Pair via Accessories menu: From the Profile page in the COROS app, open the Accessories menu. Do not click "Add New Device" at the top of the Profile page. HYDROP must be paired from within the Accessories menu.
- Toggle off Bluetooth: If your phone and HYDROP fail to connect, turn your phone's Bluetooth off for 30 seconds, then turn it back on and try the pairing process again.
- Restart HYDROP: Connect HYDROP to power and wait until you see the orange light on the front of the device. Once you do, unplug HYDROP from power. Repeat this process four more times to complete the restart process.
HYDROP is compatible with COROS NOMAD, VERTIX 2, and VERTIX 2S.
- Delete previous connections: If HYDROP was previously connected to another COROS account or COROS watch, make sure it is deleted from that device before attempting to pair with a new one. You can delete HYDROP from the COROS app by going to the Profile page > Accessories > select HYDROP > Remove. To delete HYDROP from a COROS watch, go to System > Accessories > HYDROP > Delete.
- Pair manually: Long press the Back button on your COROS watch to open the Toolbox menu. Scroll to System > Accessories > Add Bluetooth. While your watch is searching for nearby accessories, shake HYDROP a few times to wake it up from sleep mode. The orange light on the front of HYDROP should flash.
- Restart both devices
- Restart your COROS watch by holding down the power button for 15 seconds.
- Restart HYDROP by connecting it to power. Wait until you see the orange light on the front of the device. Once you do, unplug HYDROP from power. Repeat this process four more times to complete the restart process.