FKGZJF

Fit Ring Smart Health Rings for Women Men with Heart Rate Blood Oxygen HRV Stress Level Sleep Monitor

61+ bought in the past month

$59.98$99.99

About this item

  • 💎【Size Before You Buy】When you place an order, please choose your favor color and the ring size. Please refer to the size chart and measure your finger's circumference to determine the correct ring size for your finger. we highly recommend to buy the FKGZJF Sizing Kit to determine the most comfortable and suitable size for your finger, avoiding the inconvenience of returns and exchanges. if you know your US ring size from 7# to 13#, then you can also buy our smart ring with the same US size.
  • 💎【Intelligent Sleep Tracker】: This health tracker ring can automatically monitor your sleep. Monitor your falling asleep, waking up time, sleep quality (deep sleep and light sleep) through graphs. You can view daily, weekly and monthly sleep data in the App, helping you better adjust your habits to improve your sleep quality. This fitness ring is so comfort, you won’t even notice it’s there while it monitors your sleep.
  • 💎【Track Your Health from Your Finger】: This smart health rings for women men provides 24-hour blood oxygen monitor, heart rate moinitor, heart rate variability (HRV) monitor and stress level moinitor. You can conveniently view these real-time health indicators from the Q Ring App, and You can view daily, weekly and monthly health data in the App. This ring health tracker provides you a more accurate monitoring information to help you explore a healthier lifestyle.
  • 💎【Activity Tracker & 100+ Sport Modes】: This fit ring automatically track your steps, calories burned and distance throughout the day. This ring fitness tracker has more than 100 sports modes such as running, cycling, skipping rope, walking, hiking, yoga, dancing, golf and more. Active these sport modes, you will get sport time, steps, heart rate, calories burned and distance from the App, to provide you with more effective exercise guidance.
  • 💎【NO Subscription Fees】: After purchasing the health monitor ring, you can enjoy lifetime free access to the Q Ring application. Enjoy real-time health tracking around the smart ring without any extra fees. No subscription fees to download the App and use it for lifetime.
  • 💎【Long Battery Life】: The FKGZJF health rings has a battery life of up to 3-5 days on a 2 hrs charge. We offer a magnetic charging cable and a free portable charging case with 400 mah battery, The fully charged charging case can recharge the fitness rings up to 15 times, which greatly extending the usage time to 60 days.
  • 💎【Remote Capture】The smart ring supports remote photo control to effortlessly capture great moments. Activate the function in the app, then gently shake the ring to remotely capture photos using your smartphone.
  • 💎【Easy to Charge and Wide Compatibility】: Simply charge the fitness ring tracker by a magnetic USB cable or by the charging case. The smart ring for women men is compatible with Android 4.4 / iOS 8.4 or above smart phones.This ring tracker is a great gift for men and women.
$59.98
Was $99.99Save $40.01

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Product details

Operating SystemAndroid Wear 2.9
Memory Storage Capacity128 MB
Special FeatureActivity Tracker, Lightweight, Multisport Tracker, Sleep Monitor, Slim Design
Battery Capacity20 Milliamp Hours
Connectivity TechnologyBluetooth
Wireless Communication StandardBluetooth
Battery Cell CompositionLithium Ion
GPSGPS Via Smartphone
ShapeRound
BrandFKGZJF

Technical specifications

package_dimensions4.09 x 3.11 x 1.26 inches
item_weight3.2 ounces
item_model_numberSmart Ring
batteries1 A batteries required. (included)
best_sellers_rank#22,637 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #116 in Activity & Fitness Trackers #150 in Electronics & Gadgets
date_first_availableApril 16, 2025
manufacturerDuobuy
memory_storage_capacity128 MB

From the brand

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Customer reviews

4.2101 ratings

Customers say

Customers find the smart ring tracks health and activity effectively, with one noting its continuous blood oxygen monitoring capability.

★★★★★

Love This Smart Ring!

NiralOctober 27, 2025

I’ve been using the Fit Smart Health Ring for a couple of weeks, and I’m really happy with it! It’s lightweight, comfortable, and tracks heart rate, blood oxygen, stress levels, and HRV accurately. The sleep tracking is detailed, too. I love that there’s no monthly subscription—just a one-time purchase. The app works well on both iPhone and Android, and syncing is quick. Battery life is great, usually lasting 4–5 days, and it’s waterproof. Overall, it’s stylish, accurate, and convenient for health tracking without a bulky smartwatch. Highly recommend! Read more

★★★★★

Quality

KristinaAugust 13, 2025

Absolutely love this smart ring! No subscription needed — the app is completely free, super easy to use, and works perfectly. The battery lasts incredibly long, especially with the charging case — you can literally forget about charging it for weeks! The ring looks stylish and premium, feels lightweight, and you barely notice it on your finger. Tracks sleep, heart rate, oxygen, and activity very accurately. For this price — such a great find, just perfect! Read more

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★★★★★

Absolutely Impressed – Small but Incredibly Smart!

MelissaOctober 7, 2025

I bought this smart ring on a whim, not expecting much—especially considering the price compared to other big-name fitness trackers. But wow, I was completely blown away by the performance, features, and sleek design of this little device! First of all, the gold finish is absolutely stunning and makes the ring look like a stylish piece of jewelry rather than a tech gadget. It’s lightweight and comfortable enough to wear all day and night, and I honestly forget I even have it on. The fit is true to size (I got the size 7), and it hasn’t slipped or irritated my skin at all. As for functionality—this ring does so much more than I expected. It accurately tracks my heart rate, blood oxygen, sleep patterns, and even stress levels and HRV (heart rate variability). I’ve compared the results with my smartwatch, and they’re very consistent. What impressed me most is how it monitors my sleep, showing light vs. deep sleep, and even picks up on my breathing rate while sleeping. The companion app is simple and intuitive. You don’t need a subscription (huge plus!) and everything syncs quickly via Bluetooth. The app shows your health stats in easy-to-read charts, and I love that it gives little wellness suggestions based on your data. Another great thing—this ring is IP68 waterproof, which means I can wash my hands, take a shower, and go out in the rain without worry. The battery life has also exceeded my expectations—I only charge it every few days and it tops off quickly. If you want a minimalist, sleek, accurate, and surprisingly advanced health tracker without dealing with a bulky smartwatch or expensive monthly fees, this ring is a must-buy. I’m already recommending it to friends and family. It’s perfect for anyone who wants to monitor their health discreetly and stylishly. Read more

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★★★★★

Great smart ring, stylish and comfortable!

TonyAugust 24, 2025

This smart ring looks amazing! The design is sleek and stylish, it looks like jewelry and not a tech gadget which I love. It is lightweight and comfortable to wear all day and night. The app is simple and user friendly, it tracks steps, sleep, heart rate and notifications all in one place. Sleep tracking is especially helpful, it gives a clear picture of how well I rest. The syncing is fast, the battery lasts a long time, and overall the quality feels premium for the price. This is a great alternative to a smartwatch if you want something smaller and more discreet. Highly recommend! Read more

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★☆☆☆☆

Unreliable Battery & Connection, Two Defective Units

Alexis B.January 12, 2026

I really wanted this ring to work, but it didn’t even make it through a full day. The first unit I received had major battery and connection issues, so Amazon sent a replacement. Unfortunately, the second one failed the same way. Within the first couple of hours of wear, the battery dropped from nearly full to critically low. Overnight, it disconnected and died, only recording about 23 minutes of sleep before shutting down. That’s not normal for a device that’s supposed to track sleep and health metrics. I followed all the setup instructions and wore it properly, so this doesn’t feel like user error. After two rings failing almost immediately, it seems like a quality or reliability issue. The concept and features seem good, but based on my experience I wouldn’t recommend this model. I’d suggest looking at a different smart ring that’s more reliable for sleep and health tracking. Read more

★★☆☆☆

Does a lot of things but most not very well. Nice toy but not a health monitor

Thomas CrouseJanuary 11, 2026

Does a lot of things but most not very well. Battery life 2 days Sleep monitoring is useless I’m a bad sleeper and after a particularly bad night, it reported a good 7 hours sleep . not even close Activity counting is fair. Counts about 10% less that other trackers Blood pressure useless. Constantly 20-30 points less than an accurate measure. Don’t rely on it for this critical health measure Heart rate and oxygen levels are decent One would hope that the $300 versions would be better but I doubt it. Nice toy but little else Read more

★★★★★

Nice change from the smartwatch for my husband

FrankiSeptember 15, 2025

If you want a health tracker that doesn’t feel like a chore, this ring nails it. Slips on like jewelry, looks clean, and works hard. The sensors track oxygen, stress and sleep with solid accuracy. Being IP68 waterproof means you don’t have to baby it — shower, wash hands, sweat, no worries. No subscription fee is the cherry on top. Battery lasts well, easy to sync to your phone, and the app’s layout is intuitive. Durable build, minimal fuss. If you're tired of bulky wristbands, this ring is the sleek switch you’ve needed. Read more

★★★★★

Great purchase.

Needhi patelNovember 14, 2025

This smart ring has been a great purchase. It tracks my heart rate, oxygen levels, and sleep patterns very well. The design is sleek and lightweight, so I barely feel it on my finger. The battery lasts longer than I expected, and the charging case is very convenient. For the price, this is an excellent alternative to expensive rings! Read more

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