Hivisuals R-18 Smart Ring with Charging Box: 24-hour heart rate monitoring
Meet the Hivisuals Smart Ring—your new 24/7 health and fitness buddy that's as stylish as it is smart. Forget clunky wearables; this sleek little gadget keeps tabs on everything from your heart rate to how many calories you've torched, all without nickel-and-diming you with a subscription app. Whether you're pounding the pavement, conquering trails, or just trying to remember where you left your bike, its multiple sports modes have got your back (and your legs, and your lungs...).
And here's the kicker: it's so light (a featherweight 3.4g) and comfy, you'll forget you're wearing it—until it blows your mind with sleep insights that actually help you catch more Z's. Charging? No sweat. The portable case not only keeps it safe but juices it up for 7-10 days of non-stop action. Works like a charm with Android 6.0 or iOS 10.0 and up, because who has time for compatibility drama?
- Blood oxygen tracking
- Multiple sports modes
- Sleep quality analysis
- Fast charging with portable case
- 24-hour heart rate monitoring
General specs
- Brand: Hivisuals
- Model: R-18
- Seller: Amazon
- package_dimensions: 3.15 x 3.15 x 2.6 inches
- item_weight: 0.1 Kilograms
- batteries: 1 AA batteries required.
- date_first_available: April 14, 2025
- language: English
- country_of_origin: China
- standing_screen_display_size: 1 Millimeters
- memory_storage_capacity: 10 MB
- First listed by seller: 6/19/25
If you are interested in more details, you can find full information on the seller's page.
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Shipping options
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Comparison with similar products
| This item | Recommendations | |||||
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Hivisuals R-18 24-hour heart rate monitoring
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Hivisuals R-18 24-hour heart rate monitoring
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Hivisuals R18 24-hour heart rate monitoring
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Hivisuals R18 24-hour heart rate monitoring
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Hivisuals R18 24-hour heart rate monitoring
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Hivisuals R-18 24-hour heart rate monitoring
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| Brand | Hivisuals | Hivisuals | Hivisuals | Hivisuals | Hivisuals | Hivisuals |
| Model | R-18 | R-18 | R18 | R18 | R18 | R-18 |
| Color | ||||||
| Rating |
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| Price | $59.99 | $59.99 | $45.99 | $45.99 | $45.99 | $41.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | June 28, 2025 | June 27, 2025 | July 19, 2025 | June 27, 2025 | June 27, 2025 | August 5, 2025 |
| package_dimensions | 3.15 x 3.15 x 2.6 inches | 3.15 x 3.15 x 2.6 inches | 3.03 x 3.03 x 1.85 inches | |||
| item_weight | 0.1 Kilograms | 0.1 Kilograms | 3.2 ounces | |||
| batteries | 1 AA batteries required. | 1 AA batteries required. | 1 AA batteries required. | |||
| memory_storage_capacity | 10 MB | 10 MB | 10 MB | |||
| Batteries | 1 AA batteries required | 1 AA batteries required. | 1 AA batteries required | |||
Thomas S.
New York, NY
June 22, 2025
As a researcher, I always look into products thoroughly before buying, and this ring caught my eye for its health features without ongoing costs. I've been using it for a couple of months now, and overall, it's a solid device. It's quite reliable for daily activity tracking and sleep monitoring, which aligns with my interest in staying healthy as I enjoy music and concerts—keeping active is key. The charging case is a standout, making it easy to keep it ready for use. However, the connectivity issues and app interface could be improved. It works with my phone, but the setup wasn't as seamless as I expected. Despite these minor drawbacks, it does what it promises well, and I'd recommend it to others looking for a discreet health tracker. It seems to me that with a few updates, it could be nearly perfect.
- Pros: I quite liked how lightweight and comfortable it is, making it easy to wear all day without any irritation. The charging case is very convenient, keeping it powered for over a week, which is great for my active lifestyle. It tracks my heart rate and calories burned accurately during walks and other activities, and the sleep insights have been helpful in improving my rest. The design is stylish and subtle, blending well with my daily wear.
- Cons: After digging in settings, I found that it doesn't sync as smoothly with my phone as I'd hoped, occasionally requiring multiple attempts to connect. The lack of a subscription is a plus, but the companion app could be more intuitive and user-friendly for someone my age. Sometimes the fitness tracking seems a bit off during intense workouts, and I wish it offered more detailed metrics without extra hassle.