Black Shark’s smart ring was reported as a China-market product in 2024, but it does not run for 180 days on one charge. The ring itself was reported to last about four to six days; the “up to 180 days” claim refers to cumulative use with its charging case. Its other unusual feature is touch control for phone functions, alongside advertised health and activity tracking.
Was the Black Shark smart ring actually released?
Yes. Black Shark teased the ring in April 2024, initially without a confirmed release date. Later coverage reported that it went on sale in China through JD.com. The distinction matters: the early teaser was not evidence of a global launch, and the later China availability does not establish one. Gizmochina’s April 2024 report covered the teaser; Notebookcheck later reported the China sale.
2026 status: The Black Shark global catalog reviewed on August 18, 2026, does not visibly list the original ring as a current global retail product. The available evidence does not confirm an official U.S. or European launch, current international stock, or a current official price. Black Shark’s global catalog is the place to check for current brand listings, but its absence there is not proof that no third-party seller has inventory.
What does the 180-day battery claim mean?
The 180-day figure is a case-assisted total-endurance estimate, not the ring’s runtime on one charge. Notebookcheck reported a 16 mAh battery in the ring and approximately four to six days of ring-level use, with the charging case enabling repeated top-ups and extending the combined period to as much as 180 days. These are reported specifications, not independent test results.
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Think of it like wireless earbuds: a charging case can stretch the time between wall charges, but it does not make each earbud operate for months without being recharged. Likewise, the Black Shark case’s claim concerns the combined ring-and-case charging cycle. “Up to” endurance can also vary with sensor use, Bluetooth behavior, conditions, and battery age; no current real-world battery test is established here.
What is Intelligent Touch?
“Intelligent Touch” refers to active gesture controls, not health sensing. Reported interactions include pressing, swiping, and customizable single-click actions. Examples include remote photo capture, video control, launching an app, checking the time, or triggering other phone functions. These capabilities were described in product coverage rather than a complete, current English manual.
Actual behavior may depend on the companion app, phone operating system, permissions, app version, region, and supported application. The available information does not establish a universal gesture map or compatibility with every iPhone, Android phone, camera app, or video service.
What health and activity data does it track?
Reported features include heart rate, blood oxygen saturation, heart-rate variability (HRV), body temperature, sleep, steps, calories, distance, running and cycling activity, and menstrual-cycle tracking. A third-party manual listing also describes these features, but it should not be treated as a substitute for official product documentation. The manual listing has not been independently established as an official Black Shark manual.
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- 【Check the Size Before Purchase】 Before buying the prxxhri 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.
- 【Real-time Accurate Sleep & Fitness Monitoring】 prxxhri smart ring tracks your sleep quality and daily activities in real time. With advanced sensors, it provides precise data about your sleep cycle, helping you optimize rest and recovery. Whether you are tracking steps, calories or exercise performance, this smart ring can provide you with the most accurate insights to support your fitness goals and enhance your overall health.It is a good choice for family and friends.
- 【Health Monitoring】The prxxhri ring features advanced 4.0 sensors that automatically measure your heart rate every 30 min when worn. It provides continuous health tracking and comprehensive wellness management all day.
- 【2-3 Day Battery Life】 With a 2-3 day battery life, the prxxhri smart ring ensures continuous health monitoring without frequent charging. When used with the smart charging case, the usage time can even exceed 5 days. Whether you are tracking sleep patterns or fitness activities, you can count on long-lasting performance without constant interruptions.
- 【80-meter Waterproof, Suitable for Various Scenarios】 The prxxhri 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.
Sensor availability does not demonstrate accuracy or make the ring a medical device. Black Shark’s Shark Health terms say its services are not intended to diagnose, treat, cure, or prevent disease, and that its products are not medical devices. Black Shark’s Shark Health terms are the relevant reference. Treat readings as wellness information, not a replacement for clinical equipment or medical advice; no independent accuracy testing is established here.
Reported specifications and China price
| Item | Reported detail |
|---|---|
| Thickness | 2.2 mm |
| Weight | Approximately 4.4–5.4 g, depending on the report |
| Water resistance | Advertised as 5ATM; do not infer suitability for diving, hot tubs, high-pressure water, or every water activity |
| Ring battery | 16 mAh |
| Ring runtime | Approximately four to six days, as reported by Notebookcheck |
| Case-assisted endurance | Up to 180 days total, as advertised/reported; not single-charge ring runtime |
| China launch price | 599 yuan; roughly US$83 at the direct-conversion rate reported at the time, not a current international price |
| Colors | Moonlight Silver; a Black/Red version was reported for later availability |
These figures are reported specifications, not a guarantee for every size or unit. A third-party manual listing gives sizes 6 through 13, but its official status is unverified, so confirm sizing with a seller before ordering. The different reported weights may reflect size or version differences, or inconsistent listings; the available evidence does not resolve that point.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Where can you buy it, and what should international buyers check?
China-market coverage reported sales through JD.com at 599 yuan. That historical, region-specific listing does not confirm current stock or a supported retail channel elsewhere. Black Shark’s global catalog does not visibly list the ring in the catalog reviewed on August 18, 2026.
A marketplace listing is not the same as official regional availability. Before buying an import, check the seller’s listing and written terms for:
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- 【Size Before You Buy】Before purchasing the Milavan Smart Ring, we recommend referring to the size chart and carefully measuring your finger circumference. This helps ensure a comfortable fit and avoid unnecessary returns or exchanges
- 【Wellness Tracking】The slim ring features advanced 4.0 sensors that automatically track your heart rate every 30 minutes while worn. Daily data is available in the app for reference only and is not intended for medical use
- 【Intelligent Sleep Tracker】The fitness ring automatically tracks your sleep quality, including deep and light sleep, REM (eye movement), and awake periods. You can view all sleep data anytime in the app for daily reference
- 【8 Sports Modes Tracking】Supports 8 sports modes, including Running, Cycling, Jump Rope, Walking, Hiking, Yoga, Dancing, and Golf. View workout duration, steps, heart rate, speed, calories burned, distance, and other activity data in the app
- 【Stylish Fitness Companion】Featuring a slim 2mm profile and a specially polished inner surface, this smart ring is designed for comfortable all-day wear and most sports activities. View detailed workout data in the app after selecting a sport mode
- The exact model and whether the charging case is included.
- Ring sizing, return window, and return address.
- Ring-only runtime, case capacity, and charging time, rather than a headline that only says “180 days.”
- App name, availability in your country and language, and compatibility with your phone.
- Warranty region, customer support, and whether international shipping is actually offered.
- Manufacturing date and battery condition, particularly for old inventory.
The available sources do not establish U.S. warranty coverage, FCC approval, international shipping, English-language support, app-store availability in every region, or compatibility with all Android and iPhone models. The official Shark Health service page refers to smart-ring services, but it is a terms and privacy document—not proof that this specific ring is currently sold or supported in a given country.
Is the Black Shark ring worth considering?
It may interest someone who can verify the seller and app, wants a slim wearable with basic tracking, and has a practical use for gesture controls such as remote photography. Its reported 599-yuan China launch price was notably low, and the charging case could be convenient for users who prefer fewer trips to a wall charger.
It is a riskier choice for a buyer who needs dependable local warranty service, proven long-term app support, independent sensor-accuracy evidence, or a confirmed official retail channel. Factor in shipping, taxes, marketplace fees, and seller markup rather than treating the historical China price as the amount a buyer elsewhere will pay. Black Shark’s current smartwatch catalog offers more visibly listed brand wearables, though a watch is not a ring and does not reproduce this ring’s finger-based gesture controls.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
