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Our smart rings use advanced PPG sensors and high-performance accelerometers. After extensive testing and data comparison debugging, the data accuracy is comparable to mainstream smartwatches on the market (such as Apple Watch, Garmin). The accuracy can reach over 90%, capable of precisely capturing minute changes in heart rate, blood oxygen, and sleep data.

No. The smart ring is a consumer electronic product focused on healthy lifestyles and sports monitoring, not a medical device. All measurement data (including heart rate, blood oxygen, body temperature trends, etc.) are for health reference only and should not be used as a basis for medical diagnosis or treatment.

In typical usage scenarios (with 24/7 monitoring enabled), the ring battery life can reach 4-6 days. Using the charging case or magnetic charging cable, it takes only about 60-90 minutes to fully charge.

The professional smart ring is equipped with advanced features such as ECG, blood glucose trend monitoring, and body composition analysis, which the consumer smart ring does not possess. To adapt to different usage scenarios, the professional smart ring is not equipped with touch functions.

Our portable charging case has a built-in large-capacity battery. When fully charged, it can provide 8-10 full charges for the ring, supporting your use for several weeks during travel without needing to find a power source.

Absolutely. The ring features a 5ATM (or IP68) waterproof rating, allowing it to handle daily hand washing, showering, and even swimming. However, please avoid using it in high-temperature and high-humidity environments such as saunas or hot baths to prevent steam from damaging the sealing ring.

Our sleep monitoring algorithm is very precise and can effectively identify different sleep states; the error in sleep duration will not exceed 5 minutes.

Monitoring covers four stages: Awake, Light Sleep, Deep Sleep, and REM (Rapid Eye Movement). We also generate a comprehensive sleep score based on this data to help you understand your sleep quality.

This is a technology that estimates blood glucose trends by analyzing blood rheology characteristics through optical sensors. It can help you understand the impact of diet on blood sugar fluctuations, but it cannot replace traditional blood sampling measurements. If you are a diabetic patient, please be sure to rely on blood glucose meter test results.

Through the built-in optical heart rate sensor (PPG), specific wavelengths of light (green/red/infrared) are emitted into the skin. Changes in light reflection caused by blood flow are detected, and algorithms calculate real-time heart rate and blood oxygen saturation.

This is a comprehensive indicator that combines your sleep quality, Heart Rate Variability (HRV), and yesterday's activity load to assess your body's energy status today, suggesting whether you should exercise actively or rest.

If you are using the COMI professional smart ring, it can analyze indicators such as body fat percentage and water content to help you understand physical health changes more comprehensively.

Since the smart ring contains sensors, the wearing feel is different from ordinary rings. We strongly recommend that you choose the appropriate size based on the inner diameter shown in our Sizing Kit to ensure the sensors fit snugly against the skin.

We typically offer 8 standard sizes from #6 to #13.

It can monitor skin temperature trends. This is very helpful for monitoring early signs of illness, stress levels, and tracking female physiological cycles.

Yes, when there are new features or performance optimizations, the APP will push a firmware upgrade prompt. You only need to click upgrade in the APP and keep the ring battery sufficient to complete the wireless upgrade (OTA).

For rings with touch functions, please wear it on the index finger; for rings without touch functions, you can wear it on any finger. Align the sensor bump inside the ring with the finger pad (palm side) to ensure the most accurate data collection. The fit should be comfortable and snug, and should not be loose or rotate.

Our products have passed major international certifications such as CE, FCC, and RoHS. The battery has UN38.3 and MSDS reports, complying with import and sales standards in major global markets. You can visit our technology page for specific details.

The ring has built-in high-precision touch/gesture sensors. You can control your phone by tapping, sliding, or long-pressing the sensing area. It mainly supports short video Apps (such as TikTok, YouTube Shorts browsing, liking), e-book page turning, music play/pause, and remote photography.

It does not control all APPs; it is mainly optimized for multimedia scenarios. You can understand the touch function as equipping your phone with a mouse that can scroll up/down, single-click, and double-click.

After presetting emergency contacts in your phone's SOS function, you can actively trigger the SOS function via specific gestures (such as continuous tapping or long-pressing). The phone will automatically send a distress SMS with location information to the preset contacts and automatically call your emergency contact (requires the APP to be running in the background).

If you have an elderly family member wearing the ring, you can enable the Care function as an administrator in the APP. When the elderly person's heart rate is abnormal or they have been inactive for a long time, your phone will receive a notification alert.

Yes, you can set a heart rate warning threshold in the APP. When the monitoring value exceeds the set range, the ring will vibrate to remind you.

You can receive notifications from almost all other Apps on your phone, such as WhatsApp messages, incoming calls, emails, etc., through the COMI smart ring's vibration function. You can select which mobile App notifications you want to receive in the smart ring App.

To obtain the best sensor signal and touch experience, the index finger is the best choice, followed by the middle finger or ring finger. For smart rings with touch functions, we recommend wearing it on the index finger to facilitate operating the touch area with your thumb.

Your data security is our top priority. Data is encrypted and stored on high-security cloud servers compliant with GDPR (Europe) standards. No one can access your personal data without your authorization. Additionally, the ring has local storage functionality; it can retain your health data for the last week without connecting to the App, and local data will automatically upload when you reconnect.

Please search for "AIZO Ring" in the App Store (iOS) or Google Play (Android) to download.

No. Unlike some competitors, COMI promises that basic health monitoring and data analysis functions are free for life, with no monthly fees or subscription fees required.

Yes, our APP supports two-way synchronization with Apple Health and Google Fit, allowing you to integrate ring data into your existing health ecosystem.

Yes. If you do not need to customize your own App, we already have a very mature generic App for you to use, which is excellent in both operation logic and functionality.

Yes, for enterprise-level partners, we provide SDK interfaces to support connecting ring data to your own health management platform, elderly care system, or enterprise APP.

Existing functions include heart rate, blood oxygen, body temperature, sleep, stress, activity recording, vibration alerts, touch control, etc. Details can be viewed on the technical page. For large orders, we can customize specific algorithms (such as gesture control for specific devices) or NFC functions (such as access control, payment, subject to specific project assessment) according to needs.

The MOQ for ring customization is 3000. If you only need to customize packaging or other accessories (such as the charging case), the MOQ is 2000.

Yes, we can provide an SDK for you to develop the App yourself, or we can directly design and customize a complete App for you.

In addition to the OEM and ODM services for the smart ring itself, we can also customize packaging, charging cases, manuals, Apps, and other related services for you.

We usually use Laser Engraving, silk screen printing, or metal etching to engrave your brand Logo or Slogan on the inner or outer ring (depending on the material).

We greatly respect intellectual property rights. For ID designs or special functions exclusively paid for and developed by clients, we can sign an **NDA (Non-Disclosure Agreement)** and an exclusive sales agreement to ensure that the design is sold exclusively by you.

We can create prototypes based on your ideas. We will produce samples for you to test and confirm before you place a bulk order.

Since this involves mold opening, engineering debugging, and R&D costs, custom samples usually require a fee. However, this fee can be fully refunded after subsequent bulk orders reach a certain quantity.

Yes, we currently support customization of smart rings with a battery life of over 15 days.

Of course, we can customize a charging case with a larger battery capacity entirely according to your needs.

For small batch orders or samples, we usually ship about 1 week after payment. For large batch orders, it depends on your order quantity and requirements.

Express delivery usually takes about 7 working days, air freight usually takes 8-15 working days, and sea freight usually takes about 25-45 days.

Yes, for major countries in Europe and America, we provide DDP (Delivered Duty Paid) service, which includes customs clearance and tax payment with door-to-door delivery. You do not need to deal with complex import procedures; just wait to receive the goods.

If your order is for non-customized products, since our factory is in China, we need to ship from China. If you need our standard products and there is already a partner agent in your region, we recommend you pick up goods directly from our agent. Our agents have spot stock and can let you receive goods faster through local shipping. Whether you buy standard products through our agents or our factory, the price is the same, so you don't need to worry about price markups. If there is no agent in your area for the time being, we will ship from China for you.

Of course, for any order, we will provide a tracking link and logistics number for you to track the shipment status.

You can fill out an application on our Distributor Support page and submit it; we will communicate with you within 24 hours of receiving your application.

Of course, our retailer support policy is absolutely friendly to you. We aim to assist you in cooperating with COMI with minimal or even zero risk. In addition to a lower MOQ, we will prepare 10% extra spare stock for your first order. Details can be viewed on our Retailer Support page.

Master Distributors will enjoy exclusive sales rights in the region, the most competitive pricing system, and the privilege of having inquiries from that region forwarded directly to you.

Yes, we encourage you to buy samples to experience the product first. Sample fees can be fully deducted from your first subsequent bulk order (excluding sample shipping costs).

Due to differences in transportation costs and customs clearance policies across different regions and countries, and to protect the rights of our regional agents, COMI does not provide drop shipping services. If there is a regional agent in your area, you can contact them directly for support.

Yes, we will provide high-resolution product images, model wearing images, scenario images, and detailed product specification sheets for your direct use in sales.

Yes, we can sell Sizing Kits separately.

After downloading and opening the App, for first-time use, place the ring in the charging case or use the charging cable to keep the ring charging, then search for and add the device in the App.

First, please ensure your phone's Bluetooth is turned on and the ring has sufficient power. Place the ring back in the charging case and try again. If it still cannot connect, please ensure your phone's Bluetooth has not blocked the ring.

For Android users, please ensure that "Input Device" is enabled for the ring in your phone's Bluetooth settings. For iOS users, please go to Settings -> Accessibility -> Touch -> Turn on "AssistiveTouch". This is a necessary setting for Apple systems. Also confirm that the ring has been switched to "Interaction Mode" (some models require switching in the App).

This is usually because it is worn too loosely or the sensor is not aligned with the finger pad. Please maintain the correct wearing position and method.

On the device settings page in the APP, scroll to the bottom and click "Unbind" or "Delete Device".

Body recovery requires wearing the ring continuously for at least one full night (generating sleep data) to calculate. If it was not worn last night, there will be no data today.

When your ring's battery is below 10%, the vibration function will be turned off; please keep it sufficiently charged. Additionally, if you have already opened and are using a specific mobile App, the smart ring will not continue to remind you of notifications for that mobile App. This is the same principle as your phone's message notifications.

When the distance between the ring and the phone is too far, the ring will automatically disconnect from the phone's Bluetooth. You only need to bring the ring close to the phone again and connect to your phone's Bluetooth. The effective distance is usually 7-10 meters.

For any product using batteries, repeated charging and discharging over long periods will affect battery health. This is a normal phenomenon. COMI smart rings ensure that battery health only begins to decline after 500 charge cycles, whereas many white-label products on the market experience serious battery health degradation after 100-200 cycles.

Please ensure you have set the smart ring as an input device for your phone.

Please contact us or your regional agent and provide a description of the fault along with video/photo evidence. We will perform a remote diagnosis, and once confirmed as a hardware failure, the RMA process will be initiated.

Our products provide a 12-month warranty. During this period, we will promptly handle any non-human damage to the device.

According to international trade practices, the shipping cost for returning to the factory is borne by the customer, and the shipping cost for sending the repaired item to the customer is borne by COMI. For small retail customers, if you purchased through our agent, our agent will bear the return and replacement shipping costs. If you are our agent, COMI will send you new replacement products and bear the shipping costs.

Of course, for bulk orders of over 500 units, we usually provide 1% free spare units.