SR16 RWFit Smart Ring
Model SR16
- Fitness-optimized smart ring with advanced motion tracking algorithms
- Multi-sport automatic recognition with connected GPS route mapping
- Continuous heart rate monitoring with training zone analysis and alerts
- VO₂ max estimation and recovery time recommendations for athletes
- IP68 waterproof with sweat-resistant construction for intense workouts
- Durable titanium alloy build, 8mm width, lightweight 5g design
Key Features
Core capabilities that set this device apart in the B2B health wearable market.
Fitness-Optimized Tracking
Purpose-built for active users with advanced motion algorithms, automatic sport recognition, and detailed performance metrics including pace, cadence, and elevation.
Training Zone Analysis
Real-time heart rate zone monitoring with color-coded alerts — fat burn, cardio, and peak zones — helping users optimize every workout session.
VO₂ Max Estimation
Cardiorespiratory fitness estimation with trend tracking over time, providing athletes with actionable data to measure training effectiveness.
Recovery Insights
Post-workout recovery time recommendations based on heart rate recovery rate, HRV, and sleep quality data, helping prevent overtraining.
Connected GPS
Pairs with smartphone GPS for accurate outdoor route mapping, distance tracking, and pace analysis across running, cycling, and hiking activities.
Sweat-Proof Durability
IP68 waterproof with specialized sealing for sweat and moisture resistance, ensuring reliable performance through the most intense training sessions.
OEM/ODM Customization
Geyan Technology Innovation offers comprehensive white-label and customization services to help you launch your branded health wearable product quickly and efficiently.
Brand Customization
Custom logo, color options, packaging design, and user manual — fully tailored to your brand identity.
White-Label App
Branded iOS and Android companion apps with your logo, UI theme, and cloud data platform integration.
Firmware & SDK
Custom firmware development, API/SDK integration, and OTA update infrastructure for your ecosystem.
Algorithm Licensing
Proprietary health algorithms available for licensing — sleep, HRV, ECG, blood pressure, and more.
Certification Support
Documentation and testing support for CE, FCC, RoHS, REACH, and FDA 510(k) pre-assessment.
Flexible MOQ
Low minimum order quantities for pilot runs, with scalable mass production up to 50,000+ units/month.
Clinical Applications
Smart ring technology enables continuous, non-invasive health monitoring across multiple clinical domains.
- Sleep Medicine — Continuous overnight SpO₂, heart rate variability, and body temperature tracking for sleep quality assessment and sleep apnea screening support.
- Cardiology — Long-term HRV trend analysis and resting heart rate monitoring for cardiovascular risk stratification. ECG-enabled models support arrhythmia detection.
- Women’s Health — Skin temperature variation and RHR pattern recognition for menstrual cycle tracking and fertility window estimation.
- Chronic Disease Management — Continuous monitoring for hypertension, diabetes, and metabolic syndrome patients requiring long-term vital sign tracking.
Sizing & Comfort
Designed for 24/7 wear with precision fit and ultra-lightweight materials.
- Multiple Sizes Available — US ring sizes 6-12, with a complimentary sizing kit provided for OEM/ODM clients to ensure users find their perfect fit.
- Ultra-Lightweight Design — Weighing only 4-6g, significantly lighter than traditional smartwatches, enabling comfortable overnight and all-day wear without finger fatigue.
- Premium Materials — Titanium alloy or stainless steel shell options with medical-grade epoxy resin inner body, hypoallergenic and skin-safe for prolonged contact.
- Ergonomic Profile — Slim 8mm band width with smooth inner curvature, designed to fit comfortably between fingers without interfering with daily activities.
- Waterproof Design — IP68 / 5ATM rated, suitable for hand washing, showering, and swimming without removal.
Specifications
| CPU | Nordic 54L15 (RAM 256KB, ROM 1.5MB) |
| PPG | Jufei RA3220 x 2, 50Hz sampling rate |
| G-Sensor | MiraMEMS DA267 |
| Bluetooth | BLE 6.0 |
| Battery | 24-32mAh, charging case included |
| Charging Time | ~1 hour |
| Working Time | 5-7 days (connected) |
| Waterproof | IP68 |
| Ring Width | 8mm |
| Weight | ~5g |
| Shell | Titanium alloy outer + Epoxy resin inner body |
| App | H Ring |
| Compatibility | iOS 13+ / Android 8.0+ / HarmonyOS (below 5.0) |
| App Languages | 36 languages |