
K80 Luck Ring Smart Ring
Model K80
- Built-in OLED digital display — view time, steps, and health data on the ring
- Touch-sensitive interface for convenient on-ring operation and data browsing
- PPG heart rate and SpO₂ monitoring with real-time display feedback
- Sleep tracking with morning sleep score displayed directly on the ring
- IP68 waterproof with durable construction for all-day wear
- Stylish design with customizable display faces and multiple color options




Key Features
Core capabilities that set this device apart in the B2B health wearable market.
OLED Digital Display
Integrated 0.48-inch OLED screen displaying time, date, steps, heart rate, SpO₂, and calories — no phone needed for quick health checks.
On-Ring Touch Control
Capacitive touch interface for seamless navigation between health metrics, settings, and display modes with intuitive tap and swipe gestures.
Real-Time Health Display
Instant heart rate and blood oxygen readings displayed on the ring with one-tap measurement, ideal for quick wellness checks throughout the day.
Sleep Score Display
Morning sleep quality score with duration and stage breakdown shown directly on the ring display, eliminating the need to check your phone first thing.
Customizable Watch Faces
Multiple digital and analog-style display faces with personalization options for data layout, color themes, and information priority.
Smart Notifications
Discreet vibration alerts with caller ID display and message previews on the ring screen, keeping you connected without reaching for your phone.
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 |
| Display | 0.48″ OLED, touch-enabled |