Hivisuals R-18 Smart Ring with Charging Box: 24-hour heart rate monitoring
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?
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
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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$69.99
Last price update: 6/20/25
Available to order
Shipping options
Delivery to 
United States
United States
Available
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 R18 24-hour heart rate monitoring
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| Brand | Hivisuals | Hivisuals | Hivisuals | Hivisuals | Hivisuals | Hivisuals |
| Model | R-18 | R-18 | R18 | R18 | R18 | R18 |
| Color | ||||||
| Rating |
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| Price | $69.99 | $69.99 | $45.99 | $34.99 | $45.99 | $45.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | June 20, 2025 | June 16, 2025 | June 19, 2025 | May 13, 2025 | June 13, 2025 | June 12, 2025 |
| package_dimensions | 3.15 x 3.15 x 2.6 inches | 3.15 x 3.15 x 2.6 inches | 3.15 x 3.15 x 1 inches | |||
| item_weight | 0.1 Kilograms | 0.1 Kilograms | 0.1 Kilograms | |||
| batteries | 1 AA batteries required. | 1 AA batteries required. | 1 AA batteries required. (included) | |||
| standing_screen_display_size | 1 Millimeters | 1 Millimeters | 1 Centimeters | |||
| memory_storage_capacity | 10 MB | 10 MB | 10 MB | |||
| Batteries | 1 AA batteries required | 1 AA batteries required. | 1 AA batteries required | |||
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