Milavan TK20 Smart Health Ring: Monitors heart rate, blood oxygen, and blood pressure every 30 minutes
This smart health ring is for the active person who wants wellness data without a bulky wristband. It fits seamlessly into your daily routine, whether you're tracking morning heart rate or monitoring sleep quality. The slim, scratch-resistant design means you can wear it comfortably from the gym to the office without worrying about damage.
Beyond basic fitness tracking, this ring offers a unique perspective on holistic health. Instead of just counting steps, it provides continuous insights into heart rate, blood oxygen, and stress levels throughout your day. The upgraded sensor picks up subtle changes in your body, like a slight dip in blood oxygen during a stressful meeting, so you can adjust your habits proactively. With 24-hour sleep monitoring and 187 sports modes, it helps you understand your wellness patterns for better rest and more effective workouts.
Practical benefits include easy compatibility with Android and iOS via the free app, allowing you to sync data effortlessly. The long battery life lasts 3–5 days on a quick charge, and features like remote camera control add convenience. For a perfect fit, use the sizing kit or measure your finger to ensure comfort all day.
Features
- 24-hour automatic sleep tracking with deep and light sleep stages
- Upgraded AB2026B3 chip for higher accuracy and lower power use
- 187 sports modes including running, walking, and water sports
- 7mm width with micro-matte finish for scratch and fingerprint resistance
- Battery lasts 3–5 days with 1–2 hour charging time
- Compatible with Android and iOS with free app
- Remote camera control and device-finding function
- Monitors heart rate, blood oxygen, and blood pressure every 30 minutes
General specs
- Brand: Milavan
- Model: TK20
- Seller: Amazon
- ID: B0FFMPGRWF
- Size: 8
- Weight: 0.240625
- Battery Life: 3–5 d
- Charging Time: 1, 2
- Battery Capacity: 500
- OS Compatibility: Android, iOS
- Bluetooth Version: 5.0
- First listed by seller: 12/6/25
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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Price History for seller Amazon
| Date | Price |
|---|---|
| 1/21/26 | $56.04 |
| 12/6/25 | $58.99 |
Shipping options
United States
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SORNBEO B0F8HMRF8Z
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Smart Ring with Health and Fitness Tracking Gold No subscription fee
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Aichiken 739562467210 Rose Gold Heart rate monitoring
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Fitness Ring with Heart Rate, Sleep, Step & SpO2 Monitor Silver
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| Brand | Milavan | SORNBEO | FKGZJF | Aichiken | RIFESI | REWSX |
| Model | TK20 | B0F8HMRF8Z | 739562467210 | |||
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| Price | $56.04 | $32.99 | $59.98 | $55.99 | $139.00 | $59.98 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | January 21, 2026 | January 21, 2026 | January 21, 2026 | January 14, 2026 | December 9, 2025 | January 16, 2026 |
| Size | 8 | 9 | 8 | 7 | 8 | 11 |
| Weight | 0.240625 | 2 | 100 | |||
| Battery Life | 3–5 d | 3–5 d | 3–5 d | 7 d | 3–5 d | |
| Charging Time | 1, 2 | 1, 2 | 2 | 2 | ||
| OS Compatibility | Android, iOS | Android 5.0+, iOS | Android 4.4, iOS 8.4 | Android, iOS | iOS, Android | Android 4.4, iOS 8.4 |
| Water Resistance | IP68 | IP68 | IP68 | 5ATM | IP68 | |
| Connectivity | Bluetooth | Bluetooth | Bluetooth | |||
| Charging Method | Magnetic | Magnetic | Magnetic | |||