Over 100,000 People Live Smarter With Fitaos Smart Watches
Frequently Asked Questions
How reliable is the ECG (EKG) feature?
records a single-lead (Lead I) electrocardiogram by measuring electrical signals between your left and right arms when you touch the side electrode. This is useful for screening basic rhythm patterns — such as sinus rhythm, atrial fibrillation, tachycardia, or bradycardia.
Best practice: Sit still with your arm relaxed on a table. Press your finger firmly on the side electrode and hold for 30 seconds without moving or talking. Clean, dry skin improves conductivity — avoid lotion on your wrist before measurement.
Why does the ECG measurement always say "poor contact"?
Ring-based ECG requires simultaneous skin contact at two points: the inner band sensors against your finger and your other hand's finger touching the outer electrode. Dry skin, lotion, or cold fingers reduce conductivity and cause contact failures.
Fix: Ensure the ring's inner sensors are clean (wipe with a dry cloth). Slightly moisten your fingertip before touching the electrode. Press firmly and hold still for 30 seconds. Sit with your hand relaxed on a table — arm tension creates electrical noise. If it still fails, try the opposite hand for the electrode contact.
Why is the blood pressure reading different from my doctor's cuff?
Because the measurement methods are fundamentally different. estimates blood pressure via PPG pulse wave analysis — it does not have an inflatable air pump cuff. Medical blood pressure monitors physically occlude your brachial artery with a cuff to measure systolic/diastolic pressure directly. PPG-based estimation analyzes your pulse waveform shape and speed to infer pressure values.
What to expect: A variance of ±10-15 mmHg from a medical upper-arm cuff is normal. Wrist position relative to your heart significantly affects readings — even a 2-inch height difference can shift readings by 5-10 mmHg.
Best practice: Keep your wrist at heart level during measurement (rest your arm on a table). Sit upright with feet flat and legs uncrossed. Avoid caffeine, smoking, or exercise 30 minutes before measuring. Use this feature for daily trend tracking, not for clinical blood pressure management.
Why does my blood pressure show different values each time?
Blood pressure is a constantly fluctuating physiological variable — it changes with posture, emotion, caffeine, activity, and even speaking. Fitaos product estimates blood pressure through PPG pulse wave analysis (no inflatable cuff), which is inherently more variable than a medical cuff reading.
What to expect: Expect ±10-15 mmHg variance from an upper-arm cuff. If you see large swings, check that the ring is worn snugly on the correct finger and that you remain still during measurement. Focus on your 7-day and 30-day average trends rather than individual spot readings.
Best practice: Measure at the same time each day (e.g., morning after waking). Sit quietly for 2-3 minutes first. Keep the ring hand at heart level on a table. Avoid caffeine, nicotine, or exercise 30 minutes before measuring.
Why does my heart rate jump around or sometimes show inaccurate readings?
PPG heart rate monitoring is sensitive to wearing tightness, arm movement, and skin contact quality. During exercise, arm motion creates "motion artifacts" that can confuse the optical sensor. Even at rest, loose wearing or hairy wrists can cause intermittent readings.
Best practice: Wear the watch snug (one finger should just fit between the band and your wrist). During workouts, tighten one notch. Clean the sensor area (back of watch) weekly with a dry cloth. If readings seem erratic while you're perfectly still, restart the watch and try the opposite wrist.
Why does the battery only last 1-2 days instead of the advertised 3-5 days?
The 3-5 day claim is based on basic mode (time display, step counting, occasional heart rate check). In real-world use with all health monitoring features active (continuous heart rate, automatic blood pressure, sleep tracking, notifications), 1.5-2.5 days is typical.
To extend battery: Reduce screen brightness to 40-50%. Turn off "always-on" display if not needed. Disable continuous heart rate monitoring if you only need spot checks. Reduce automatic health measurement frequency in the companion app. The watch supports fast charging — 30 minutes gets you to ~60%.
Why does Bluetooth keep disconnecting? How do I maintain a stable connection?
Bluetooth disconnections are typically caused by phone power-saving features that kill background apps. Both Android and iOS aggressively close apps to save battery, which breaks the watch connection.
Android: Settings → Apps → [Companion App] → Battery → set to "Unrestricted" or "Don't optimize." Lock the app in your recent apps list (swipe up → tap the lock icon).
iPhone: Settings → [Companion App] → enable Background App Refresh. Avoid force-closing the app from the app switcher.
Both: Keep watch and phone within 5 meters (16 feet) with no thick walls between them. If persistent, go to the app's device settings, forget the device, and re-pair.
Why do some health features show "measuring" forever or fail to start?
This usually means the sensor is not making proper skin contact or the watch hasn't completed its warm-up cycle. The PPG sensor needs 5-15 seconds of stable contact before it can output a reading. If the watch is loose, the sensor loses skin contact intermittently and cannot lock onto a signal.
Fix: Tighten the band. Check the back sensor is clean. Keep the watch away from the speaker/microphone area during measurement (electromagnetic interference can affect sensors). If ECG specifically fails, ensure your finger is pressing the side electrode firmly. Restart the watch if all else fails.
Why is the screen hard to see outdoors in sunlight?
AMOLED screens — while excellent indoors — have limited peak brightness compared to sunlight-reflective LCDs. Direct sunlight washes out the display; this is common across all AMOLED smartwatches in this price range, including mainstream brands.
Workaround: Cup your other hand over the screen to create shade. Choose a high-contrast watch face with bold, light-colored digits on a dark background (available in the companion app). Enable "Raise to Wake" so the screen activates at full brightness when you look at it.
The setup instructions are too small / hard to understand. Is there a simpler way?
Quick setup steps: (1) Charge the watch fully. (2) Download the companion app by scanning the QR code in the box or searching the app store for the name shown in the manual. (3) Open the app, create an account, and grant ALL permissions when prompted — especially Location (required for Bluetooth on Android) and Notifications. (4) In the app, tap "Add Device" → select your watch model → confirm pairing on the watch screen.
For a full video guide, search for your product name on YouTube — community-created tutorials often walk through every step visually.
Why does sleep tracking say I was in deep sleep when I was actually watching TV?
This is a known limitation of all wearable sleep trackers. Sleep stage detection relies on heart rate variability and movement patterns. If you lie perfectly still while watching TV, your physiological signals can closely resemble light sleep — and the algorithm cannot distinguish between the two without brainwave data (EEG).
This is not a defect; it's the trade-off of wrist/finger-based sleep tracking vs. clinical polysomnography (which uses brain electrodes).
Best practice: Enable sleep mode right before you intend to sleep, rather than letting auto-detection run while you're still relaxing in bed. Avoid screen time 30 minutes before bed for both better sleep quality and more accurate tracking. The ring's sleep data is most useful for comparing night-to-night patterns, not minute-by-minute stage accuracy.
Why isn't the sleep tracking function working properly?
Fitaos products' sleep tracking function relies on detecting sustained low activity levels and a drop in heart rate. Common issues: (1) If you toss and turn frequently, the algorithm may fragment your sleep or even miss some sleep completely. (2) If the watch is worn too loosely, activity detection may become unreliable. (3) Manual sleep mode vs. automatic detection: Fitaos products may require you to manually enter sleep mode before bed (please check the settings in the companion app).
Which finger is recommended for wearing the Fitaos Smart Ring?
For optimal performance and accuracy, we recommend wearing the Ring on the index finger. This finger typically has stronger arterial blood flow, enhancing measurement precision. However, the ring maintains consistent accuracy whether worn on the index, middle, or ring finger.
Why does my ring keep disconnecting from my phone?
Because Fitaos products are small, their Bluetooth antennas are smaller than those of watches, resulting in a shorter effective range of only 3-5 meters (10-16 feet). Furthermore, to conserve power, the ring doesn't maintain a continuous Bluetooth connection—it connects automatically when you open the companion app to sync data and disconnects automatically after syncing is complete.
This is by design: data is stored on the ring and uploaded when the app is opened. Brief disconnections (1-2 hours) will not result in data loss. To force syncing, open the companion app while the ring is close and then pull down the data screen to refresh. On Android devices, set the app's battery mode to "Unlimited" to prevent the system from interrupting background syncing.
How accurate is the blood glucose (blood sugar) reading on this watch?
The Fitaos product estimates blood glucose trends using non-invasive PPG optical spectroscopy — it does not sample your blood. This technology detects metabolic-related optical signal variations through the skin, which correlate with glycemic changes but are not direct measurements.
What to expect: Readings can differ by 10-30 mg/dL (0.8-1.5 mmol/L) from a finger-prick glucometer or CGM. The watch is useful for observing trends — noticing when your glucose rises after meals or drops after exercise. It is not suitable for insulin dosing, medication decisions, or diagnosing diabetes.
Best practice: Wear the watch snugly one finger-width above your wrist bone. Sit still with your arm resting on a table during measurement. Take 3 consecutive readings and average them for better consistency. Use the companion app's calibration feature by entering a reference value from your glucometer for improved trend alignment.
Is there a calibration process for more accurate readings?
Yes. The companion app includes a personal calibration feature for blood pressure and blood glucose. Enter a reference value from a certified device (upper-arm BP cuff or finger-prick glucometer), and the app adjusts the algorithm offset to align with your personal baseline. Re-calibrate once per week for best results. Note that calibration improves trend alignment but does not make the readings clinically equivalent to medical devices.
The band irritates my skin or feels uncomfortable. What can I do?
The factory band is made of standard silicone, which can cause irritation for users with sensitive skin or when worn tightly for extended periods. Silicone allergies are uncommon but possible — symptoms include redness, itching, or rash under the band area.
Solutions: (1) Loosen the band slightly — it only needs to be snug enough for the sensor to make contact. (2) Clean the band daily with mild soap and water; sweat and dead skin buildup is a common irritant. (3) Alternate wrists — wear on the opposite wrist at night. (4) Consider replacing the band with a nylon woven or Milanese stainless steel mesh strap (check compatibility — some bracelet models have fixed bands).
Customer Reviews
Overall rating: 4.7 / 5 from 80 reviews.
I’ve loved my smart ring since I got it. It helps me track everything for me.
Great product works perfectly has a little issue with knowing how much power it has left.
I’m very pleased with the quality as well as the price and I’d definitely recommend this smart ring. I waited a month of use so that I could give you a honest review. I bought it primarily because of the Glucose Monitor functionality so I could monitor my glucose levels. I’m not diabetic but like to track my vitals during pre/post meals as well as workouts. It automatically tracks all the vitals every few minutes plus you can get instant results by pushing the button for the readings you want.
Surprisingly works well accurate most times came in handy instead of poking myself being diabetic like I said it’s accurate most times
Love it. Just wish it was waterproof and not just water resistant.
So far it's going well. Do my ecg daily. I has shown i have tachycardia. So I am getting my heart checked. And monitor done. My super 👌 reading have been good 👍. And the sleeping tracking is spot on.
5
It works
Difficult to understand all functions. Some items not translated into English.
Works well I feel it is fairly accurate except It does not measure steps very accurately
Fitaos has quick response on their product and good care about customer.
I loved it but I unfortunately list it in a few days. Unable to find it. Any way to track it? or any other advice?
This ring works well. It isn’t right one but it is close enough, I feel, that you could catch trouble coming. I did notice, especially when my hands were cold, the fit was loose, and I think this could be the reason for the slight difference. Or maybe what I was checking it against was awry. But I shall find out soon as I just ordered another, in one size smaller so the fit should be more consistent. Standby for the next review!
Pretty good device, nice, long battery life. Most of the device readings are accurate. Within a percentage
Does everything I need
Great for monitoring my blood pressure and glucose
The smart ring works great It looks real nice is accurate except for the glucose reading its not to far off but enough to cause issues with blood sugar It still helps me to get a general idea of where my sugars are at. The other measurments like heart rate blood oxygen sleep blood pressure and temp are all very accurate Its got great battery life a charge lasts 3 to 4 days and charges up very quick Its a very good smart ring for the price and i recommend it to anyone looking for a good smart ring at a very good price
The ring was quite hard to get calibrated for the glucose reading but it seems to work very well after that.
I like it
Easy to use, great ring for the price
Seems to work as it should. It was for my daughter to keep track of her sugar she wishes it was prettier.
It’s accurate and tracks steps, blood pressure, etc.
Ordered a size 11 ring but received a size 10. Otherwise everything was good.
Good
It works well for what I want. Suggest improvements. Glucose readings appear to follow a preset daily rhythm hard to keep to calibration. To get ECG to work well, the ring needs to press against a body part. Grasping hands together tightly with the ring will also work close to the cellphone app.
GREAT
I love that it’s blood pressure & blood glucose measurements can be calibrated to an independent standard. Also, I haven’t seen such a broad suite of measurement types in such a small package. Lastly, a single charge lasts over a week. The colors in the HealthWear app’s blood pressure display need greater contrast (orange & yellow are too similar). I have a hard time reading that display. Everything else I really like and find very useful… its a well designed app.
I love all of its capabilities. But that said, the ECG function sometimes doesn’t work if you have dry skin.
The ring seems to work correctly after it is calibrated. However, I can't wear it because it is so large. I tried measuring my finger when I ordered the ring but the size I thought I needed would fit a gorilla. I never wear it because it is just too big.
even my doc was empressed
I am loving this smart ring. I have recommended it to some family and coworkers because it is so great. It has helped me monitor my blood sugar and blood pressure throughout the day. My primary reason for buying it was for the blood glucose monitoring. I highly recommend this product.
It's a lot smaller than it's should be. Had to order 2 and the second one is still too small even though I followed the instructions on how to measure for the proper size.
Charge lasts for ~ 5 days and fully recharges in ~ 1 hr. I'm still getting used to how it tracks different metrics as its different from my fitbit, but it integrates with apple health which is a plus.
Readings are off by 5%. If you can make the app updates to get readings every 5 minutes instead of 30 minutes will more accurate averages Otherwise so far it looks good.
Once calibrated with an actual blood test the glucose monitor is pretty accurate. I wish it had more exercise routines to capture like swimming, driving. ECG has some trouble to capture, but provides very useful insights when it does work. Price is a great advantage without any need for subscriptions.
Excellent
Even better than I expected
It would be great to put heart conditions already known so you can monitor any extra changes. And i have orthostatic hypotension automic dysfunction. It always say good keep it up but it drops 20 to30 points and still said good job but i had to go to the hospital because i felt horrible and passed out :( but if we could fix that it would make a huge difference in my life
Much better than advertised! Easy to connect to phone and reading are pretty acurate