RIFESI Fitness Ring with Heart Rate, Sleep, Step & SpO2 Monitor: Continuous heart rate, step counter, calories, sleep stages, blood oxygen (SpO2) and stress/HRV tracking
Designed for the active professional who wants health insights without a wristband, this titanium smart ring tracks your day from morning workouts to evening wind-down. It’s a discreet alternative to bulky wearables, perfect for monitoring sleep or wearing in meetings where a smartwatch feels out of place.
You get smartwatch-level data in a minimalist form. The ring captures continuous heart rate and sleep stages with a snug fit, so you see how stress impacts your rest overnight. Its 7-day battery and waterproof design mean you can wear it through showers and sweat without interruption. Pair it with your iPhone or Android via the free app—no subscription locks your health reports behind fees.
Use the included sizing kit for accuracy, as a proper fit ensures reliable SpO2 and step readings. The app logs your metrics alongside life events, helping you connect trends to daily habits. It’s a practical tool for anyone seeking a sleek, subscription-free fitness ring.
Features
- 7-day battery life with compact charging case
- 5ATM waterproof for handwashing, sweat, rain and quick showers
- No subscription required, all features accessible via free app
- Works with iPhone and Android for seamless data sync
- Lightweight, hypoallergenic titanium alloy for comfortable 24/7 wear
- Includes sizing kit for accurate fit and reliable readings
- Life timeline and moments feature for personal wellbeing diary
- Continuous heart rate, step counter, calories, sleep stages, blood oxygen (SpO2) and stress/HRV tracking
General specs
- Brand: RIFESI
- Seller: Amazon
- ID: B0FPCQCRN8
- Size: 8
- Material: Titanium Alloy
- Battery Life: 7 d
- Connectivity: Bluetooth
- Display Type: None
- Charging Method: Magnetic
- OS Compatibility: iOS, Android
- Water Resistance: 5ATM
- First listed by seller: 12/9/25
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
Russia
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Fitness Ring with Heart Rate, Sleep, Step & SpO2 Monitor Silver
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BIEMHA VR11 Black Real-time accurate sleep and fitness monitoring
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Ultrahuman RA-RT-Size14-US Silver Comprehensive health tracking
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POBOVi Gen 1 Gold
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Milavan TK20 Rose Gold
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Smart Ring Black Medical-grade sensors for health data tracking
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| Brand | RIFESI | BIEMHA | Ultrahuman | POBOVi | Milavan | SEEKZERO |
| Model | VR11 | RA-RT-Size14-US | Gen 1 | TK20 | ||
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| Price | $139.00 | $69.99 | $349.00 | $99.99 | $58.99 | $129.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | December 9, 2025 | December 9, 2025 | August 5, 2025 | December 9, 2025 | December 9, 2025 | December 6, 2025 |
| Size | 8 | 10 | 9 | 8 | 8 | |
| Battery Life | 7 d | 3–5 d | 7 d | 3–5 d | ||
| OS Compatibility | iOS, Android | iOS, Android | iOS, Android | Android, iOS | Android, iOS | |
| Water Resistance | 5ATM | IP68 | IP68 | |||
| Weight | 100 | 0.240625 | 1.0 | |||