User Guide
8
IMPORTANT NOTE: If your ring has reached 0% battery, please connect to your ring
with the app. If you don't do it, your ring won't acquire data.
The Circular ring is held magnetically to the charger. To charge your Circular ring:
1. Place the magnetic contact pins from your Circular ring on the charger’s pins.
2. Plug the charger dongle into a USB-C port on your computer or an adaptor on any
plug.
3. If charging works then the led of the charger should blink. Your ring is fully
charged when the led stops blinking.
Some pro tips for charging success:
1. Try placing the ring on the charger first, then plugging in the USB port. If you do
not see the LED come on, try lightly moving the ring on the charger.
2. Try taking the ring off the charger and then putting back.
3. If you still do not see the LED, try flipping the ring 180 degrees (like spinning a
penny, not rotating like a wheel) so the opposite charging contact connects. If you
still do not see the LED, try cleaning the contact pins of your charger and your ring
using warm water and soap, then drying with a soft cloth.
4. If you still do not see the LED, try a different power source or other
adapter/charger.
5. When charging a Circular device using a wall outlet, it is recommended that a
premium brand AC adapter should be used. Some off-market adapters will prevent
the ring from reaching the charging state.
6. Charge your ring at room temperature. Avoid charging in your cold car, garage, or
a room that is too hot.
7. After a firmware update, the battery display in your Circular app can be off. To
make sure the displayed battery charge is accurate, please fully charge your ring
again.
Airports, Secure Buildings, Magnetic Scans
The magnetic field created by metal detecting gates present at airports or entrances
to secure buildings are known to harm electronic equipment, such as laptops, cell
phones and the Circular ring. Security wands create the same magnetic pulse and
can also damage your devices. Even a single exposure can impact your devices in a
way that's not immediately visible. It is recommended to send all your electronic
devices through the x-ray scanner with your carry-on.