Wearing Armband 2.0
Where should I wear Armband 2.0?
We recommend wearing Armband 2.0 comfortably on your upper arm—either arm is fine. If preferred, you can also wear it on your upper forearm. We don't recommend wearing it on your wrist.
What size strap does Armband 2.0 have?
The Armband 2.0 strap fits upper arms measuring 9–12.5 inches (23–32 cm) in circumference.
Can I purchase an extra Armband 2.0 strap?
We don't currently offer spare Armband 2.0 straps, but you can purchase a compatible spare strap from COROS here.
Can I buy a larger Armband 2.0 strap?
We're currently developing more strap size options. In the meantime, some users have successfully used larger COROS straps available here.
Note: Visible’s Armband 2.0 is a different device from the COROS heart rate monitor, the straps are compatible.
Purchasing and Replacement
Can I buy a replacement Armband 2.0?
Currently, Armband 2.0 can only be purchased directly from Visible. If you lose your Armband 2.0, please contact Member Support—we’re happy to assist.
Materials and Durability
What materials are used in Armband 2.0?
The sensor:
Plastic (ABS+GF, PMMA)
Stainless steel (SUS 316, contains nickel)
The strap:
Polyamide (elasticated fabric)
Elastane
Aluminium
Is Armband 2.0 waterproof?
Yes, Armband 2.0 is fully waterproof and safe to wear while swimming, showering, or bathing. If exposed to saltwater, ensure you clean the charging pins thoroughly to prevent buildup.
Cleaning and Maintenance
How do I clean Armband 2.0?
Regularly wash your Armband sensor and strap using mild soap and water. Rinse thoroughly and air-dry the strap by hanging it or laying it flat. Avoid using alcohol or disinfectants.
How do I turn off Armband 2.0?
There's no need to manually turn off Armband 2.0. It automatically detects when you're wearing it and enters standby mode when not in use.
Troubleshooting and Connectivity
What should I do if Armband 2.0 won't connect?
Follow our device restart instructions here.
How can I prevent missing heart rate data?
Ensure the Visible app runs in the background continuously.
Avoid connecting Armband 2.0 to multiple devices or apps simultaneously.
Refresh data manually by going to your Heart Rate screen (via your Today tab), then pulling down below the heart rate graph until a tick appears.
How do I restart Armband 2.0?
Restart your device by pressing the reset button (located on the top side, beneath the strap) with a pin while the charger is disconnected. Restarting won't erase your heart rate data.
Important: Connecting the charger during a reset will restore Armband 2.0 to factory settings.
How do I update the firmware?
If a firmware update is available, go to Profile > About > Troubleshooting and select "Armband firmware update."
What do the LED patterns represent?
This LED pattern is displayed when the Armband 2.0 is on and ready to measure your heart rate, but the optical heart rate sensor is not in contact with your skin:
This LED pattern is displayed when you are wearing the device and the device is measuring your heart rate:
Additional Capabilities
Can I track sleep with Armband 2.0?
Visible isn't yet optimized for sleep tracking, though we do still recommend wearing your armband overnight. Our product plans for 2025 include introducing basic sleep tracking so we hope to have more news about this soon.
Can I continuously track HRV?
Currently, Armband 2.0 doesn't provide continuous HRV tracking. However, HRV data is collected during your Morning Check-in.
Can I measure blood pressure?
No, Armband 2.0 doesn't track blood pressure.