Description
Price: $299.00 - $6.99
(as of Nov 24, 2025 19:54:06 UTC – Details)
Product description
【Check the Size Before Purchase】 Before buying the SARUNN ER 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.
【Diverse Health Monitoring, All-round Protection】 The SARUNN ER 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 and blood oxygen throughout the 24 hours of the day, protecting your physical health in an all-round way.
【Intelligent Sleep Tracker, Caring for Your Health】 This SARUNN ER 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.
【Long Battery Life and Ultra-thin Design, Enjoy the Convenience】 The SARUNN ER 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.
【90-meter Waterproof, Suitable for Various Scenarios】 The SARUNN ER 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.
【No Subscription Fees, Enjoy Exclusive Services】 With the SARUNN ER Smart Ring, you don’t need to pay any subscription fees, and you can unlock the full range of functions of the SARUNN ER 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.
Customers say
Customers find the smart ring excellent for health tracking, with one noting its accuracy in monitoring blood pressure and sleep. The ring is stylish, comfortable, and works well with Android devices, staying charged for 2 days and charging quickly. Customers appreciate its ease of setup, with the app being user-friendly, and they like its detailed sleep tracking features, providing insights into both deep and light sleep patterns.
Jay QPR –
Sleek, Accurate, and Convenient
Iâve been wearing a smartwatch for years, but this is my first time trying a smart ring. I was curious about how accurate the small sensors would be and how well they could read data. I was also concerned because Iâm not usually a fan of wearing rings, and I wasnât sure if I could get used to the discomfort.To get a better comparison, I wore both the smart ring and smartwatch for several days and compared them. While there are some features that are exclusive to each device (for example, there are data points only a smartwatch can track and others that only the ring can measure), I could still make basic health observations. What I was most interested in was whether this ring could actually replace my smartwatch. So, I focused on two main comparisons that matter most to me.â Sleep Tracking – The discrepancy between the two devices was roughly 5-10 minutes overall. I wasnât able to figure out exactly when I fell asleep, so I have to rely on the wake up time measurement. The smartwatch measured when I woke up, using small body movements to detect it. On the other hand, the smart ring measured when my body was fully awake, so it recorded a few extra minutes of sleep time compared to the smartwatch.â Blood Pressure – As far as I know, there arenât many smartwatches or fitness trackers that measure blood pressure accurately. However, this smart ring does have that feature.Ring: 109/72Regular blood pressure monitor: 113/68Of course, blood pressure readings can vary each time, but I think these numbers are pretty close and within the acceptable range.â Fit & Comfort – Although wearing a ring was something new for me, I got used to it after a few days. It felt similar to when I first started wearing my smartwatch. I imagine after a few more days or weeks, Iâll be completely accustomed to it.Overall – After using the ring for several days, Iâve come to appreciate its convenience. The measurements seem pretty accurate. I havenât compared it directly with other smart rings, but based on my experience with this product alone, I think itâs definitely worthwhile. If, like me, you care about sleep tracking and blood pressure monitoring, Iâd highly recommend this ring. Itâs also stylish.
Charlene –
Perfect Mix of Style and Smart Features!
I have been using this smart ring for a while now, and Iâm genuinely impressed. Itâs super light and comfyâI often forget itâs even on my finger. For such a small device, it does a lotâit tracks sleep, steps, heart rate, oxygen levels, and even blood pressure with impressive accuracy. I love checking my sleep data every morning; it clearly shows deep and light sleep, and the results are very close to what I get from my Apple Watch Series 10.It connects smoothly with my iPhone and doesnât require any subscription, which is greatâjust a one-time purchase. The battery lasts several days and recharges quickly too. I also appreciate that itâs waterproof, so I donât have to take it off when washing my hands or showering.The rose gold design looks sleek and elegantâjust like a normal ring, but smarter. Overall, itâs a great mix of tech and style, and way more comfortable than wearing a smartwatch all day. Highly recommend it to anyone looking for an easy, low-profile way to track their health!
Habrosmama –
Great ring and works like itâs supposed to
I got this smart ring out of curiosity. Iâve been using a smartwatch to measure my heart rate and blood pressure, but now I can just wear this ring and it handles everything like sleep tracking, heart rate, blood oxygen, and even blood pressure. I compared the readings with my Galaxy Watch, and the ring usually comes out slightly lower, but still close and consistent. It works like itâs supposed to, and itâs a great little ring. The battery lasts several days on a single charge, and the best part is that thereâs no subscription at all.
Claudia Cantero –
Perfect Smart Ring for Daily Health Tracking â Accurate, Comfortable, and No Subscription Needed!
Iâve been using this smart ring for a few weeks now, and Iâm honestly impressed! It tracks my sleep, steps, heart rate, blood oxygen, and even blood pressure very accurately. The data syncs smoothly with my iPhone, and I love that it also works with Android, so itâs super versatile.One of my favorite things is that thereâs no subscription fee â everything is included, which is a big plus compared to other smart devices. The ring is lightweight, comfortable, and I even wear it while showering because itâs waterproof. The battery life lasts several days on a single charge, which is super convenient.If youâre looking for an affordable and stylish way to monitor your health without monthly costs, this ring is absolutely worth it!
Melissa –
Junk
Nothing is accurate. Donât bother. I bought it for sleep, bc I charge my Apple Watch while I sleep. It says I slept 39 minutes. I fell asleep with my watch on and it says I slept for 7 hrs and 45 minutes. Apple Watch is accurate. I spelt all night and didnât wake up. Ridiculous.
Jo –
Impressive!
This smart ring surprised me with how much it can do. It tracks workouts, heart rate, and blood oxygen very accurately, and the sleep reports are clear and genuinely helpful. The battery lasts several days and the charging case extends it even further, which makes it easy to wear nonstop. It is very light and comfortable and the waterproof rating means I never have to take it off. I also love that the app is fully unlocked without any subscription. A great choice if you want advanced health tracking in a minimal and comfortable form.
Raon –
Impressive Little Ring That Does a Lot
Iâve been using this smart ring for a few days now, and Iâm honestly impressed. It tracks my sleep, steps, heart rate, and blood oxygen accurately, and the data syncs easily with my phone. I love that thereâs no subscription fee, just buy it once and youâre good to go. Itâs lightweight, comfortable to wear all day and night, and looks sleek enough to pass as a regular ring. The waterproof rating is a nice bonus too. For something this small, it packs in a lot of useful features. Definitely a great alternative to bulky fitness trackers.