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Smart Ring with Sleep Monitoring, Step Counting, Heart Rate, Blood Pressure for iPhone and Android, No Subscription Fee, IP68 Waterproof Health Tracker (Gold, 7)

Free shipping on orders over $29.99

$99.99

$ 45 .99 $45.99

In Stock

1.:7


2.Color:Gold


About this item

  • 【Check the Size Before Purchase】 Before buying the Free Shark Smart Ring, we strongly suggest that you refer to the size chart and carefully measure the circumference of your finger. This will ensure you get the most comfortable wearing experience and easily avoid any unnecessary returns or exchanges.
  • 【Intelligent Sleep Tracker, Caring for Your Health】 This Free Shark fitness ring is like a considerate little assistant for your sleep health. It will accurately monitor the quality of your sleep, and record in detail the durations of deep sleep and light sleep, as well as the specific situations of your wakeful states. You just need to open the app at any time, and you can clearly view all kinds of sleep indicators. Then, according to the professional reports, you can easily adjust your lifestyle to embrace better-quality sleep.
  • 【Diverse Health Monitoring, All-round Protection】 The Free Shark Smart Ring has a variety of powerful health monitoring modes. Whether it's running, walking, hiking, cycling, yoga, dancing, skipping rope or other sports, it can automatically and accurately track key data such as the exercise route, exercise time, steps taken, heart rate, speed, calories burned and exercise distance in the app. Moreover, it can continuously track important health data such as heart rate, blood oxygen and blood pressure throughout the 24 hours of the day, protecting your physical health in an all-round way.
  • 【80-meter Waterproof, Suitable for Various Scenarios】 The Free Shark Smart Ring has excellent waterproof performance, with a waterproof depth of up to 80 meters. Whether it's for daily wear, an intense workout session or a pleasant swimming time, it can handle it with ease. What's more, even if you have sensitive skin, you can still enjoy an extremely comfortable wearing experience when wearing this ring.
  • 【Long Battery Life and Ultra-thin Design, Enjoy the Convenience】 The Free Shark Smart Ring has a very strong battery life. After a full charge, the battery can last up to 5 days, easily keeping up with your busy lifestyle. When used with the smart charging case, the usage time can even exceed 30 days. It is widely compatible with both Android and iOS systems, which is very convenient and practical. In addition, the updated design is lighter, thinner and more comfortable, with a greatly improved wearing fit. It's so light that you can hardly feel it on your finger.
  • 【No Subscription Fees, Enjoy Exclusive Services】 With the Free Shark Smart Ring, you don't need to pay any subscription fees, and you can unlock the full range of functions of the Free Shark Smart Health Monitoring App for life. Continuously enjoy the convenience of real-time health tracking, and also get professional and targeted advice, making health management easier and more efficient.



Product Description

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LC
Reviewed in the United States on May 8, 2025
I've wanted to try a smart ring for a while but just can't bring myself to spending $400+ for one when I'm perfectly content with my smart watch. However, I came across this for less than $60 and wanted to see how I'd like it before deciding to purchase a more expensive one. I like that I can use this while my watch is charging or when I forget to put it back on, and it's also great when I just want to give my poor wrist a rest and/or time to tan (because tbh my watch tan line is ridiculousss 🫣 lol). I was surprised that this ring is made of resin/plastic (unlike its much more expensive titanium counterpart from S******), which makes it very lightweight. I wasn't sure which size to get so I ordered a 7 which fits on my right ring finger perfectly, though I probably would've liked it better on my middle finger. I wish this had been available in silver or rose gold so that it would've matched my daily jewelry a lot better. Despite being quite thick, it isn't bothersome and I forget that I'm even wearing it. I'm pretty rough with my hands so I'm genuinely curious as to how long this will last but after almost a week it still looks brand new. I use the S****** Health app with my watch and have tried several other health and menstrual tracking apps including G*****, and the Luck Ring app is quite simple in comparison but decent enough for basic tracking of heart rate, heart rate variability, blood oxygen saturation, menstrual cycle, stress, mood, and skin temperature. As for the accuracy of tracking of those factors, it seems comparable to my watch for the most part though there are some things that are a bit off (i.e., step count, distance while active, activity calories burned, ovulation). But to be fair (in regard to cycle tracking) the app has no past information to compare to in order to make more accurate predictions. I also did remove my watch a few times to shower and charge so it didn't capture *every single* step. I love that this measures my blood oxygen saturation levels throughout the day instead of just in my sleep (like my watch does), and I love that I don't have to worry about taking this off when I wash dishes or get in the shower (unlike my watch on a leather band). Despite taking foreverrr to fully charge out of the box, the battery life on this ring is unreal! I have it set to detect/measure heart rate and blood oxygen saturation every 30 minutes and even so the battery drops less than 10% each day. Being a MIC product, the translations to English and vocabulary/grammar used in the app's UI isn't the best, but is obviously understandable enough to be functional. Overall I'm impressed by this smart ring. It's great as a supplemental tracking accessory to my smart watch despite not being part of the S****** ecosystem I've got going on. I'll definitely continue to use it until I finally take the plunge on the ring I really want.
Dominique Autie
Reviewed in the United States on May 8, 2025
I’ve been using this smart ring for a few days now, and it has quickly become one of my favorite health tech devices. The design is minimal, stylish, and so lightweight that I often forget I’m even wearing it. It fits comfortably and blends easily with everyday outfits. In terms of performance, it tracks sleep, heart rate, steps, and overall wellness with impressive accuracy. The companion app provides clear, detailed insights that have helped me improve my sleep habits and stay more mindful of my activity levels throughout the day. If you’re looking for a discreet, non-intrusive way to monitor your health and wellness, this smart ring is definitely worth it. It’s a small device with a big impact.
Stef
Reviewed in the United States on May 18, 2025
I bought this ring based off the reviews and the price. It was a birthday gift for my husband.1. The ring is plastic. The quality and duribility are very poor. Reminds me of something you'd get from Five Below. It wouldn't last a week of my husband wearing it.2. The app. We both tried for an hour to register on the app. Kept giving us error messages. I tried their website, that was down. I reached out to customer service, never received a response. For some strange reason my husband managed to get it to work standing outside. Wouldn't work with wi-fi.3. The ring never actually worked. After all that, the ring never turned green to show it was working. Fully charged, it did not work. Went through all the problem solving steps, useless.Ring is trash, app is trash, customer service is non-existent. Do not waste your money.
Vicki
Reviewed in the United States on May 14, 2025
The ring arrived in a timely manner. Packaging was good, it comes with instructions, a QR code to scan for the app. After you charge it, it's good to go. The ring is very durable and water proof so you don't need to remove it when you wash your hands. It measures oxygen, heart rate and pressure. The app is easy to use. When you measure for size, measure your knuckle if it's bigger that where the ring will sit on your finger. It's a wide band and doesn't wiggle over the knuckle. I should've ordered a size bigger but all in all I am happy with the ring. Very good price for this kind of ring.
BFM
Reviewed in the United States on April 10, 2025
I recently purchased the Duobuy Smart Ring in size 9 (black), and it’s hands down one of the most impressive wearable tech purchases I’ve made. Right out of the box, the ring felt lightweight yet durable, with a modern, minimalist design that doesn’t scream “tech gadget” – it just looks like a stylish accessory.What I Love:1. Comprehensive Health TrackingThis little powerhouse offers round-the-clock health monitoring, and I mean everything. Heart rate, blood oxygen, sleep quality, steps, distance, and calories – all tracked seamlessly and accurately. It’s like having a personal health dashboard on your finger.2. Intuitive Air Gestures & Remote ControlThe air gesture feature is futuristic and fun. I use it to flip through TikTok, control music, take remote photos, and even scroll through e-books. It adds a level of convenience and cool factor I wasn’t expecting in a device this compact.3. Battery Life & Charging CaseThe ring lasts 3–5 days per charge, and the included charging case is a game-changer. With up to 15 full charges stored, I’ve basically gone weeks without needing to plug anything in. Perfect for travel or just day-to-day use.4. Waterproof Durability (IP68)I never take it off – showers, washing dishes, even the pool. No issues at all. The IP68 waterproofing lives up to its promise.Pro Tip:Do yourself a favor and get the Duobuy sizing kit before you order. I did, and the size 9 fits like a glove. No need for returns or exchanges.Final Verdict:This ring is a brilliant fusion of fashion and function. If you want to stay on top of your health without strapping on a bulky watch, this is the way to go. Stylish, smart, and surprisingly powerful – highly recommend!
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