REWSX Smart Health Ring: Heart rate and blood oxygen monitoring
For the active professional who wants to track health without the bulk of a watch, this smart ring fits seamlessly into your daily routine. It monitors your heart rate and blood oxygen continuously, giving you insights into your fitness and recovery. The app shows trends over time, so you can adjust your habits for better sleep and energy.
Wear it all day and night without noticing. The slim design feels comfortable during workouts like yoga or runs, and the waterproof build means you never have to take it off. You get real-time data on your phone, with no subscription fees to access your health history. The long battery life and portable charging case keep it running for weeks, perfect for travel or busy schedules.
Features
- Sleep tracker with deep and light sleep analysis
- Step tracker and multiple sport modes
- No subscription fees for lifetime app access
- IP68 waterproof rating
- Super battery life up to 3-5 days per charge
- Heart rate and blood oxygen monitoring
General specs
- Brand: REWSX
- Seller: Amazon
- ID: B0G3Q8P9F7
- Size: 14
- Weight: 4
- Material: Titanium Alloy
- Battery Life: 3–5 d
- Connectivity: Bluetooth
- Charging Time: 2
- Charging Method: Magnetic
- Battery Capacity: 400
- OS Compatibility: Android 4.4+, iOS 8.4+
- Water Resistance: IP68
- First listed by seller: 2/7/26
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
United States
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| Brand | REWSX | REWSX | REWSX | FKGZJF | KppeX | SARUNN ER |
| Model | 7# | X1-11# | ||||
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| Price | $56.98 | $56.98 | $59.98 | $59.98 | $139.99 | $49.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Mar 11, 2026 | Mar 11, 2026 | Mar 11, 2026 | Mar 11, 2026 | Mar 11, 2026 | Mar 11, 2026 |
| Size | 14 | 7 | 11 | 8 | 11 | 7 |
| Weight | 4 | 100 | 100 | |||
| Material | Titanium Alloy | Titanium Alloy | Metal | Stainless Steel | Titanium Alloy | |
| Battery Life | 3–5 d | 3–5 d | 3–5 d | 3–5 d | 3–5 d | 5–7 d |
| Connectivity | Bluetooth | Bluetooth | Bluetooth | Bluetooth | Bluetooth | Bluetooth |
| Charging Time | 2 | 2 | 2 | 2 | 2 | |
| Charging Method | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic | Magnetic |
| Battery Capacity | 400 | 400 | 400 | |||
| OS Compatibility | Android 4.4+, iOS 8.4+ | Android 5.0+, iOS 8+ | Android 4.4, iOS 8.4 | Android 4.4, iOS 8.4 | Android 4.4+, iOS 8.4+ | Android, iOS |
| Water Resistance | IP68 | IP68 | IP68 | IP68 | IP68 | IP68 |