• Is Circular ring compatible / integrate / synch with other external app like Apple Health or Google Fit (HealthConnect)?

  The Circular Ring is compatible with Apple HealthKit & Android HealthConnect (former Google Fit). At this moment, it is not possible to synchronize your Circular ring with any other 3rd party application. Strava and Samsung Health are platforms we are working on and will be available soon. It will be added through a future app update.Featured

• I don't see my sleep or activity data inside of the app

  If your data isn’t showing in the app, here are a few quick steps to ensure proper synchronization between your Circular Ring and the Circular app. 🔧Missing or Incorrect Sleep/Health Data? Manually Recalibrating the PPG Sensor To recalibrate the PPG sensor, follow these steps: Open the app and go to the top-left menu. Select Settings Self-Diagnostic. Follow the on-screen instructions. You will need a piece of white paper for the recalibration process. VeriPopular

• What is the calibration period?

  When you create your account, you enter into a 14-day calibration period where Kira, your personal assistant, will learn about you. During the first 4 days, you'll have limited data in your sleep and energy circles. This period is helpful for you to learn about the metrics and the app. Kira will also ask questions about your lifestyle and will correlate the data with your metrics to build references and define your chronotype. Please be diligent and answer the questions during this period, thisSome readers

• What are Circular Coins?

  Circular Coins® are rewards that you accumulate daily with your Circular Wellness Score®. You can earn more of them with having streaks that will activate multipliers. You'll get a streak when you have a Wellness Score of over or equal 90 two days in a row. The more the streak grows, the more the multiplier grows. And here's the exciting part: the journey doesn't end here! Stay tuned as we unveil the incredible ways you'll be able to use your hard-earned Circular Coins in the near future.Some readers

• Why are my data incomplete in the Circular App?

  Calibration period When you create your account, you enter a 14-day calibration period during which Kira, your personal assistant, will learn about you. During the first 4 days, you'll have limited data in your sleep and energy circles. Basically, everything that needs references and baselines, which are derived from the long-term average, is being built. Learn more about the calibration period. (https://circular.crisp.help/en/article/what-is-the-calibration-period-1kns5sw/?bust=168313062222Few readers

• I changed my phone, will I be able to get my data back?

  Yes, your data is stored on your dedicated account on the cloud server. So you can find your data on any phone as long as you log in to the same account. You can also connect to the same account on different smartphones at the same time. However, please note that your ring can connect to one smartphone at the same time. Currently, some of your data is not stored in the cloud, especially close to live medical data (ECG, Women's Health, Sport sessions). Meaning that if you lose or reset your deviFew readers

• The buttons of the app are not working

  You may have issues with the buttons of the apps that are not performing what they are supposed to. Please follow these steps: Kill your app (by swiping it up from the background app and closing it completely) Relaunch the app and check if your issue is fixed. If not, please contact the support at https://www.circular.xyz/contact-us with a screenshot and your phone's model information.Few readers

• I deleted the app, will I get back my data when I reinstall it?

  Most of your data is stored on your dedicated account on the cloud server. So you can find your data on any phone as long as you log in to the same account. You can also connect to the same account on different smartphones at the same time. However, your ring can connect to one phone at the same time. Currently, some of your data is not stored in the cloud, especially close to live medical data (ECG, Women's Health, Sport sessions). Meaning that if you lose or reset your device, certain metricsFew readers

• How much data can I store on the Circular Ring & Account?

  The ring has a built-in memory of 7 days, which means that if your phone or your app is not available, it can collect and store your biometrics for up to 7 days. Past this time without synchronization with your smartphone, the data storage will happen as a First In First Out pattern, which means that the new days of data will overwrite the oldest ones. To summarize, it's recommended to connect to the ring and launch a data synchronization every 5-6 days to avoid losing data. The app on the othFew readers

• My sleep tracking is innacurate. What can I do?

  If you’re experiencing inaccuracies with your sleep tracking using the Circular Ring, there are several steps you can take to improve the accuracy of your sleep data. Here are some tips to ensure your ring is capturing the best possible information: 1. Avoid Syncing Your Ring's Data During Sleep Period Ensure that you’re not syncing your ring’s data in the middle of your sleep. Syncing during sleep can interrupt the data recording process, leading to incomplete or inaccurate sleep analysis.Few readers

• I have undeseriable Naps. What can I do?

  Your Circular Ring may be tracking naps you haven't made. This can happen when you don't make any movements for almost 10/15 min. The reason is that we've chosen to be very sensitive to naps detection to have a better chance of detecting them. If you don't usually take a nap, you can disable nap tracking by clicking on the top left burger menu View Profile Profile Information Advanced information Open for napping No. If you want to leave this setting enabled and you have a lotFew readers

• Where can I find my Chronotype and Circadian Rhythm information?

  The Circular Ring will help you know your Chronotype and recommend the best timing for your personal chronotype. Chronotypes are linked to our internal clock and to our genes. They have a direct effect on a lot of things including bedtime and wake-up time. There are many activities whose schedules can be optimized according to your chronotype. For example, the time you eat, drink coffee, alcohol, exercise, focus, and so on. Knowing your chronotype and acting in compatibility with your chronotyFew readers

• Does Circular ring sync for timezone changes?

  The app and the data will adapt to your time zone change. When launching the app, you'll receive a pop-up on the Circular app acknowledging that you changed your timezone if your phone system timezone has changed (you need an internet connection).Few readers

• Is the Circular app translated into different languages?

  The Circular App is currently available in: English Spanish French German Italian Japanese Dutch Japanese Arabic Czech If you don't find your language, please create a ticket on the feature wishlist page. To change the app language of your Circular App, go to the top left app's burger menu of the home page Settings Language. The Circular App also supports both metric and imperial units of measurement, which can be adjusted through theFew readers

• GPS tracking (Sport Session) is not working

  If you're noticing issues with your GPS tracking during Sport Sessions—such as incorrect distance, speed, or missing/jumping trace—it’s important to understand that GPS data comes directly from your phone, not from the Circular Ring itself. These problems typically stem from how your phone's GPS interacts with the Circular app. Here’s how to make sure everything is set up correctly: ✅ 1. Check App Permissions Go to your phone settings Apps Circular and ensure: *Few readers

• Is There a Subscription to Access the Circular App?

  No — the Circular App will always be free to access. We guarantee that core features will remain free of charge and accessible without any subscription. Our goal is to provide health insights, advanced analytics, and AI recommendations without locking essential features behind a paywall. We believe that personal health tracking should be accessible and that you own your data. However, it’s important to understand that ONLY some advanced MEDICAL features we’re developing — rFew readers

• I can't trigger a Kira recommendation!

  To access Kira's recommendations, you must meet two conditions: You must have passed the 14-day calibration period. On your home page, you should see a new tab on the right to Kira's recommendations feed that lets you see a "Generate Daily Recommendation" button. You need sleep data for the same day. After clicking on the button, you may wait about ten seconds before it is generated. If you meet both conditions and: You can see the "Generate Daily Recommendation" button, buFew readers

• How to customize my Quick Access bar?

  The Quick Access bar enables users to access certain functions quickly. This bar is located below the Circles on the home page. You can configure the features that will appear in this bar by going to the burger menu at the top left "Quick Access" menu. In this menu, you can make up to 3 features visible by dragging them up and in your favorite order so that they display on your Quick access bar.Few readers

• Duplicate Steps or Metrics in Apple Health

  Some users may notice that steps or other health metrics appear duplicated in Apple Health when using Circular alongside another device such as the Apple Watch. This is not a bug in Circular or Apple Watch—it's simply how Apple Health chooses to handle data from multiple sources. You stay in control by managing your data sources or removing unwanted entries. Why does this happen? Apple Health automatically decides whether to merge or separate data from different sources based on tiFew readers

• Can I Use Circular Ring 2 to Monitor a Loved One’s Health?

  Yes, Circular Ring 2 can be used to monitor a loved one’s health, making it a great tool for caring for family members or loved ones remotely. If you gift the ring to someone, you can simply log into their Circular app account on your own phone or device. This allows you to access their health data remotely and keep an eye on important metrics like heart rate, sleep, oxygen levels, and even ECG readings — depending on what they choose to share. This feature is especially usefulFew readers

• Smart Alarm Clock feature / timer does not work

  If your Circular Alarm Clock or Timer does not trigger as expected, please check the following: 🔹 On Android Ensure you have granted notification authorization for the Circular app. To check this, you can press and hold the Circular app logo and click on the information point Authorization. 🔹 On iOS Make sure you have added the Circular app as an exception in your phone's settings for: -Focus Mode / Do Not Disturb -Sleep Mode (if enabled)Few readers

• My data synchronization gets stuck at 0% or any other %percentage, and/or the app closes / crashes during the sync

  Make sure your phone is not in Power Saving Mode, which can limit Bluetooth functionality. Try again by killing the app (swipe up from the background running apps) and restarting it. If not working, go to My Ring Factory reset to delete corrupted data from the ring. Please note that after a factory reset, you will need to set up your ring again on the charger. If that didn't solve it: Go to My Ring Manage my devices Tap the red ❌ Delete the ring from youFew readers

• Why Are My Calorie Numbers So High?

  If you're surprised by the number of calories reported by your Circular Ring — especially right after waking up — Let us explain why this is completely normal and actually helpful. 🛌 Calories Burned During Sleep Yes, you burn calories while you sleep! Your body is hard at work overnight: Maintaining core temperature Supporting cell regeneration Regulating hormones Powering your heart and brain That means when you wake up, you've already burned hundreds of calories — typicallFew readers

• Are the servers down?

  If your app isn’t syncing, data is missing, or you’re seeing errors after or before your sync, like ES02, there’s a chance our servers may be experiencing temporary issues. ⚙️ Recent Server Stability Improvements Good news first — we’ve recently upgraded our infrastructure to improve server stability. That said, synchronization may still take a bit longer, and on days of exceptionally high user traffic, some syncs may be partially or totally rejected by the server tFew readers

• The app does not track my naps

  If you’ve recently noticed that your naps are no longer appearing in the Circular app, don’t worry—this is temporary! We’ve temporarily disabled nap tracking as we work on improving its accuracy and overall performance. Our team is actively working on bringing this feature back better than ever.Few readers

• I don't see my steps at all in the app

  If your steps are not appearing in the Circular app, don’t worry — this can often be fixed quickly by checking a simple setting. Follow these steps: Open the Circular app Tap the top-left menu icon (☰) Go to Profile Select Advanced Information Scroll down to Physical Disabilities Make sure the option “No physical disability” is unchecked ✅ Enabling “Physical Disabilities” activates a mode with reduced or no activity tracking. Unchecking tFew readers