
TK30 ECG Smart Ring
Model TK30
- ECG heart health analysis with professional sensor
- Heart rate, SpO2, and blood pressure monitoring
- Remote care for family health tracking
- 5ATM + IP68 waterproof for swimming
- Stainless steel electroplated shell, 72-hour salt spray tested
- Ultra-light 5g design, 8mm ring width

















Key Features
Core capabilities that set this device apart in the B2B health wearable market.
ECG heart health analysis with professional sensor
ECG heart health analysis with professional sensor
Heart rate, SpO2, and blood pressure monitoring
Heart rate, SpO2, and blood pressure monitoring
Remote care for family health tracking
Remote care for family health tracking
5ATM + IP68 waterproof for swimming
5ATM + IP68 waterproof for swimming
Stainless steel electroplated shell, 72-hour salt spray tested
Stainless steel electroplated shell, 72-hour salt spray tested
Ultra-light 5g design, 8mm ring width
Ultra-light 5g design, 8mm ring width
OEM/ODM Customization
Xdun 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 | NRF52832 (Flash 512KB, RAM 64KB) |
| HR Sensor | GH3220S + GH3228T |
| ECG Sensor | GH3228T |
| G-Sensor | SC-7A20H |
| Bluetooth | BLE 5.0 |
| Battery | 15-20mAh, magnetic charging cable |
| Charging Time | ~1 hour |
| Working Time | ~5 days (connected) |
| Waterproof | 5ATM + IP68 |
| Ring Width | 8mm |
| Weight | ~5g |
| Shell | Stainless steel electroplating (72h salt spray tested) + Epoxy resin |
| Colors | Black / Silver / Rose Gold |
| App | (same ecosystem, 20 languages) |
| Compatibility | Android 5.0+ / iOS 10.0+ / HarmonyOS |