Duobuy Smart Ring: Heart rate monitoring
For the active woman who wants to understand her health without the bulk of a watch, this smart ring offers continuous monitoring in a sleek, comfortable design. It’s perfect for tracking your daily activity, sleep patterns, and vital signs discreetly, whether you’re at work, exercising, or winding down at home.
Beyond typical fitness tracking, this ring focuses on empowering your wellness journey with no subscription fees. You get lifetime access to detailed health data, from heart rate and blood oxygen levels to sleep quality, all viewable in the app. The ring’s long battery life and portable charging case mean you can monitor your health for weeks without interruption, ideal for travel or busy schedules.
With features like automatic step counting, multiple sport modes, and IP68 waterproofing, it adapts to your lifestyle. The two-way audio and Alexa compatibility add convenience for hands-free control, while the rose gold finish keeps it stylish. Experience how this indoor camera-like device for your health provides peace of mind, letting you stay connected to your well-being effortlessly.
Features
- Blood oxygen monitoring
- Blood pressure monitoring
- Sleep tracking
- Step tracking
- Multiple sport modes
- No subscription fees
- IP68 waterproof
- Long battery life
- Compatible with iPhone and Android
- Heart rate monitoring
General specs
- Brand: Duobuy
- Seller: Amazon
- ID: B0F3J6SMJV
- package_dimensions: 3.03 x 2.95 x 1.81 inches
- item_weight: 3.84 ounces
- batteries: 1 A batteries required. (included)
- waterproof: IP68
- compatibility: Android 4.4 / iOS 8.4 or above
- First listed by seller: 5/5/25
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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Shipping options
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Video Reviews
Comparison with similar products
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|---|---|---|---|---|---|---|
Smart Ring Heart rate monitoring
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NORTH EDGE NL03 Black
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SACOSDING 2024 Pink Heart rate monitor
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| Brand | Duobuy | SACOSDING | NORTH EDGE | SACOSDING | Smarter than future | Smarter than future |
| Model | NL03 | 2024 | ZL02CPRO | ZL02CPRO | ||
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| Price | $69.98 | $94.21 | $74.19 | $37.48 | $36.10 | $35.97 |
| Seller | Amazon | Joom | Joom | Joom | Joom | Joom |
| Update | June 27, 2025 | December 16, 2025 | December 8, 2025 | December 16, 2025 | December 8, 2025 | December 8, 2025 |
| GPS | Built-in | None | None | |||
| Display Type | AMOLED | Touch Screen | AMOLED | AMOLED | ||
| Sports Modes | Compass | 120 | <num1> | 120 | ||
| Health Sensors | Heart Rate | Heart Rate, Blood Pressure | Heart Rate, Blood Pressure, SpO2, ECG, Temperature | Heart Rate, SpO2, ECG, Temperature | ||
| Water Resistance | Waterproof | IP68 | IP68 | |||
| Connectivity | Bluetooth | Bluetooth | Bluetooth | |||
| Display Size | 1.28 | 1.78 | 1.43 | |||
| Bluetooth Version | 5.0 | 5.0 | 5.2 | |||
