• Bluetooth Connection issue: I can't find / see / connect / reconnect my ring in the app

  In some cases, you may experience ring disconnection issues. Please follow the instructions below: In case you have already connected to your ring at least once: Place your ring on thFeatured

• Is the Circular Ring waterproof?

  The Circular Ring 2 is fully waterproof with IP68 grade. The ring can be immersed in 50 meters of water for a maximum of 30 minutes. It is not recommended for use in salted water.Featured

• How to know my Circular Ring size?

  Please read our sizing page The Circular ring sizes fit the standard ring sizes. If you already know your ring size, Circular sizes will be the same. You can also go to any jeweler to ask for your US equivalent finger size. If the size does not fit when you receive your ring, you'll have 14 days upon delivery to change it for free (except shipping) if your ring is unworn and intact. The ring comes in 9 different siFeatured

• How to wear your Circular Ring?

  You can wear the Circular Ring on any finger. It is best to wear the Circular Ring on the fingers of your non-dominant hand. Eg: If you are right-handed, wear it on your left hand. The three middle fingers give the most accurate readings. Finger size can vary through the day, your fingers may swell in the morning or evening. The ring's logo should be positioned on the top side of your finger. The sensor part of the ring should be towards the palmar side of your hand. Please read the CircuFeatured

• How long does the Circular ring battery last?

  The ring has 2 different battery modes. Performance mode and Power mode. Power mode offers the best battery longevity; heart metrics will have a lower frequency acquisition. Battery life will be up to 6/7 days. Performance mode offers the best monitoring performance; heart metrics will have a high-frequency acquisition. Battery life will be reduced to 3/4 days depending on ring size. The settings are editable in the “My Ring” menu and your quick access.Featured

• Can I put my Circular Ring into Airplane mode?

  Airplane Mode of your Circular Ring disables all data transfer from your Circular Ring to your smartphone. It keeps the BLE radio transmission only to a minimum for the ring to connect to the app again. When Airplane Mode is enabled, your ring will continue to collect and store data. How to Enable Airplane Mode To enable Airplane Mode, make sure that Airplane Mode is one of the enabled quick access features. If you're not sure, tap the burger icon in the upper left-hand corner of the HomeFeatured

• Green LED vs Red LED vs Infrared LED

  The ring is equipped with three different LED colors, each serving a specific purpose based on their unique intensity and wavelength properties. Red LED: The red LED is known for its ability to penetrate the skin up to 10 times deeper, resulting in a high fidelity signal. However, it is important to note that the red LED also exhibits a higher signal-to-noise ratio and is more susceptible to motion artifacts. Infrared LED: On the other hand, the infrared LEDs share similar characteristFeatured

• Where are Circular's products manufactured?

  The entire design, from conception to final manufacturing, is done in France. The design and conception are made in France. The mass manufacturing is done in China. Our tech development team and servers are also based in France.Featured

• What are Light Versions of the Circular ring?

  The Lite version is a sub-categorization of the Slim and Pro model of Generation 1, indicating that it is a ring with all the same features as its main version, but without vibrations (haptic feedback). There are Pro Lite and Slim Light versions. Shipping: Light rings are offered at a lower price. Find a comparison chart below: How to purchase your Light ring: On the product pageFeatured

• Can I reboot / reset the Circular Ring? (Soft Reset & Factory Reset)

  A factory reset removes all settings and returns the device to the same state as when it was shipped from the factory. It will delete data stored inside the ring. It keeps the latest firmware. To perform a Factory reset: Connect your ring to your app Go into "My ring" on the top right Make sure the Ring is not on the charger Press the "Factory reset" button at the bottom of the page The ring will disconnect from the app. The Bluetooth information is deleted frPopular

• My Circular Ring is not working anymore / dead

  If your ring is not working properly, we are sorry for the inconvenience, and we will assist. Since the ring has multiple functions, it may be possible that a particular function no longer works. For example, the battery, the PPG led, the vibration (if you own a ring with vibration capabilities), or the charging functions may be one of the defaults. Please try to list the issues when you contact us as well as the last actions you performed before it stopped working. If the LED of your chargerPopular

• What should I do if my ring does not charge with the Circular charger?

  Here’s everything you need to know to ensure your Circular Ring 2 charges correctly and efficiently. 1️⃣ Plug in Your Charger Use the USB-C cable provided with your charger. Plug it into any compatible power source (laptop, power bank, wall adapter, etc.). Make sure you're using a USB-C port and a reliable power source — we recommend a quality-brand adapter. 2️⃣ Place the Ring Correctly Position your ring on the charging dock as showPopular

• What is Power and Performance mode?

  The Circular Ring has different battery modes, which have an impact on battery duration. You can select either the Performance mode or the Power mode. Power mode will give you up to 7-8 days of battery. Low-frequency heart metrics acquisition. Performance mode will give you up to 3-4 days of battery. High-frequency heart metrics acquisition. Simply navigate to your quick accesses or your ring's management menu to pick your favorite mode and start enjoying the benefits right away. WARNINFew readers

• What are the wash & care instructions of the Circular ring?

  To clean your ring, use a soft cloth or hand wash with mild soap and water on the cloth. ‍ Keep the ring away from children. Do not leave the ring exposed to heat, such as in a vehicle under the sun. ‍ The outer-ring may get scratches against harder metal jewelry or other objects in close contact made of harder materials. We do not recommend wearing the ring while weightlifting, especially when handling metallic surfaces, as this may result in scratches. ‍ Like with all rings made of metFew readers

• My Circular Ring vibrates on its own, unexpectedly or constantly

  If you noticed that your Circular ring is vibrating by itself while you do not have any particular alerts/alarm activated or when not pressing your ring's button, then please follow the steps below. Please check if the problem persists after each of the steps. Go to Settings Notifications and turn off all notifications including "High heart rate alert", "Low heart rate alert". For the heart rate alerts, make sure to click on them, turn them off and then press the "Done" button. Go intoFew readers

• I lose battery power very quickly / high battery loss

  To ensure your battery is calibrated correctly, please charge your ring fully to 100% and keep it on charge for at least 120 minutes. If this step is skipped, the battery percentage may be inaccurate, and the consumption curve will not display correctly. If you notice that Performance Mode consumes too much power, we recommend switching to Power Mode: Go to My Ring → Data Mode → Power in your app. Like all electronic devices with LiPo batteries, battery capacity will graduFew readers

• What should I do if my Circular Ring gets stuck on my finger?

  In case the ring gets stuck on your finger: 1‍. Push the bottom of your ring towards your finger, it should create a space above your finger, between your finger and your ring. Then pull the ring to tak it out while continuing to press towards your finger. Use cold water and soap or gel and slowly twist the ring to remove it. ‍ Hold your hand up above your heart until the blood pressure lowers and then go thourgh the previous steps again to remove your ring.Few readers

• I have marks on my finger / skin, what is this?

  The Circular Ring features a hypoallergenic resin interior, ensuring maximum comfort and skin safety, even for sensitive skin. You may experience red marks on your skin that are called "irritant contact dermatitis" which is a phenomenon that can be common with casual rings due to sweat, humidity, heat, or sea salt: https://www.medicalnewstoday.com/articles/ring-rash Try to moisturize your finger and to pause wearing the ring. If sFew readers

• How can I find a lost ring?

  If you’ve lost your ring and it has battery remaining, you can use the apps Find My Bluetooth Device on iOS or Wunderfind: Find Lost Device on Android to attempt tracking it down. Otherwise, reach out to our team here so we can assist you with the best steps. The Bluetooth name of your ring should be by default "Circular 4 last digit of MAC addressFew readers

• What should I do if I stop wearing my Circular Ring for a bit ? Where should I put the ring ?

  Keep in mind: Storing your Circular Ring for an extended period of time (2+ weeks) without following these steps may affect the longevity of your battery and its performance. If you plan to stop wearing it for a few days, you can place your ring in its original box. If you no longer have it, please store your ring in a temperate place protected from the sun, heat, cold, and humidity, and that does not have a reflective surface. If you plan on taking a break from wearing your Circular Ring forFew readers

• My ring does not record data / Battery drop when 30%

  If you notice that your ring has stopped recording data or the battery seems to drop suddenly to around 30%, here are the possible explanations: 1. Battery Below 5% When your ring reaches ~5% battery, it will automatically stop recording data. This is a power-saving safety feature designed to prevent the device from shutting down abruptly. 2. Battery at 0% If your ring has completely discharged (0% battery), you will need to reconnect your ring to the Circular app afterFew readers

• Can I charge the Circular Ring on a computer or mobile?

  Yes, you can. The Circular charger has a USB-C port which you can easily plug into a computer, power bank, phone or any device with a female USB-C port. If your computer does not have a USB-C port, our recommendation would be to get yourself a USB-A to USB-C adaptor or a USB-C wall outlet. In the event that your computer is so thin that you have trouble charging your ring on the Circular Portable Charger, you can also get yourself a Circular USB-C male to female cable in ourFew readers

• My step counter is innacurate / under or over estimated

  Circular's algorithms are fine-tuned to recognize steps from the rest of your daily movement. Your ring is able to identify step patterns with a high level of precision (95% accuracy) from your finger. However, some parameters can cause the result to be distorted: You need to take more than 4 steps in a row in less than 30 sec. Constant vibrations (motorbike, driving, stroller, etc) against the ring can count for extra steps. If you hold someone else's hand during a walk or move them verFew readers

• My ring can't charge more than a certain threshold %

  This is a normal behavior of the battery after using it. The ring is equipped with a lithium-polymer (LiPo) battery, which naturally degrades over time. As a result, at some point, the maximum charge capacity may be limited, reflecting the battery's actual wear. However, if you notice this immediately upon receiving your ring, please reach out to the support at https://www.circular.xyz/contact-usFew readers

• Can I wear my Circular Ring only for sleep / at night?

  You can use your Circular Ring only during sleep. The majority of the analysis is made during this time. You'll get all your scores. However, you may miss out on useful activity data and activity-related insights that loop into your other scores, like your energy score. Your Circular experience and Kira's recommendations may seem incomplete as a result. We still recommend wearing your ring 24/7 for optimal accuracy and personalization.Few readers

• Can I polish my Circular Ring?

  We don't recommend polishing your ring. This could cause the electronics to break. If this were the case, replacement would not be guaranteed by the warranty. If you do it anyway, we would be happy to see your work, tag us on socials at @circularing or circularing bemore , we will surely make a shoutout ;)Few readers

• My Circular ring is physically broken

  We’re sorry to hear your Circular Ring has been physically damaged. If the ring is physically broken, please note that this type of damage is the result of accidental impact or use that goes against our user guidelines. As such, physical damage is not covered under our warranty, and we are unable to replace the ring under warranty conditions. However, we’re here to help — please don’t hesitate to contact our support team (https://www.circular.xyz/conFew readers

• I broke my Circular Charger, how can I order a new one?

  You can buy a separate charger from this page on our web shop.Few readers

• My ring has holes or bubbles on the inside surface

  Your ring may have holes or small bubbles on its inside surface. These are manufacturing injection points. They have no influence on your ring's capabilities. Your ring remains waterproof.Few readers

• Does the Circular ring has a notification for low battery?

  If the ring is connected to the app, the app will indicate through a phone notification that the ring is low battery. It will also send a phone notification when the ring is fully charged. The ring can't vibrate to let you know that it's low battery because it would cause a shutdown.Few readers

• I don't have a USB C port? What should I do?

  The Circular charger has a USB-C port which you can easily plug into a computer, power bank, phone or any device with a female USB-C port. If you don't own one of those, our recommendation would be to get yourself a USB-C to USB-A adaptor or a USB-C wall outlet. Be careful if you use your Circular Ring with a high voltage fast charger for smartphone or computer, you risk damaging it. In the event that your computer is so thin that you have trouble charging your ring, you can also get yourselfFew readers

• Tips to Solve Poor ECG Signal

  If you’re getting a poor ECG signal when using the Circular Ring — here are some simple tips to help you improve the quality of your reading: (https://storage.crisp.chat/users/helpdesk/website/-/5/7/1/8/57187f8252da5400/whatsapp-image-2025-03-26-a-17yacj0c.jpg =300x237) ✅ 1. Sit Down and Stay Still Movement or muscle tension can cause interference. 👉 Find a quiet place to sit down, relax your arm just above your thighs (without touching them), and stay still during tFew readers

• I have bad accuracy heart data / readings. What can I do?

  If you feel that you have inaccurate readings from your ring while you're doing live measurements or during a sports session, then here is the solution. Firstly, please clean the LED spots with a cleaning cloth and water. Slightly rotate your ring around your finger so that the sensor is placed on the lower part of the bottom of your finger, like the picture below. You must avoid the PPG being right in the middle of the side of your finger where the bone is. Instead, aim for the vein undFew readers

• Can I wear my Circular Ring while working out?

  Yes, you can wear your Circular Ring throughout all your workouts and movement routines. Activities are an important part of your Circular scores calculation. However, we don't recommend wearing your Circular Ring while lifting heavy weights, as it may get scratched or broken.Few readers

• My stress score is not working. Why?

  For your stress score to work at its best, you need to be in performance mode. Power mode doesn't offer enough granularity in data frequency to calculate your stress level. You might want to switch to performance mode by clicking on My ring Data mode.Few readers

• What Is an ECG, How to use ECG and Why Is It Useful?

  What Is an ECG? An Electrocardiogram (ECG) is a test that measures the electrical activity of the heart. Every heartbeat generates electrical signals, and an ECG records these signals to analyze heart rhythm, rate, and potential irregularities. Why Is ECG Important? ECGs are widely used in medical settings to detect heart conditions such as Arrhythmias (irregular heartbeats) including Atrial Fibrillation (AFib) and other Heart rate abnormalities Regular ECG moFew readers

• Can I wear my Circular Ring in a Sauna?

  We do not recommend wearing your Circular Ring 2 in a sauna. While the ring is designed to handle a wide range of conditions, its maximum working temperature is 60°C (140°F). Most saunas operate at temperatures that exceed this limit, often ranging between 70°C and 100°C (158°F–212°F), which could: Damage the internal sensors or battery Affect the ring's long-term durability Lead to inaccurate biometric readings (especially for features like ECG, which is ratedFew readers

• Is the Circular Ring a Medical Device?

  The Circular Ring 2 is not classified as a medical device as a whole. However, it does include a precise ECG algorithm and features that meet clinical standards for specific health monitoring. ✅ The Arrhythmia Detection Algorithm used with the ECG sensor, passing validation for detecting irregular heart rhythms like atrial fibrillation. ⚠️ That said, the ring itself is not currently certified as a medical device, and therefore, it is not intended to diagnose, treat, or cuFew readers

• Did I Just Get an Electric Shock from My Ring?

  We understand how concerning this experience can be, and we want to reassure you that your safety is our top priority. Safety First – Certified & Tested Every Circular Ring goes through extensive quality and safety testing before leaving our facility. This includes passing FCC, CE, RoHS, and other certifications that rigorously verify the safety of all electronic components. An actual electric shock from the ring itself is extremely unlikely due to these protections.Few readers

• Does Circular Ring 2 Measure Blood Glucose?

  Yes — coming soon! The Circular Ring 2 will support non-invasive blood glucose trend estimation, using advanced PPG waveform analysis and machine learning to offer wellness insights on your glucose levels. ⚠️ Note: This is a wellness tool only. It is not a diagnostic feature and does not replace clinical glucose monitoring or medical advice. 🧠 How It Works Scientific research has shown that certain patterns in PPG signals — such as pulse amplitudeFew readers

• Will Circular Ring 2 Measure Blood Pressure and Blood Glucose?

  Yes — and it's coming soon! We’ve officially announced that the Circular Ring 2 will offer estimates for both blood pressure and blood glucose via a firmware update. ⚠️ Note: These are not medically certified features and are intended for wellness tracking only, not for diagnosis or treatment. 🧠 How Blood Pressure Estimation Works The Circular Ring 2 is the first smart ring equipped with both a PPG sensor and a single-lead ECG sensor. This powerful combinationFew readers