Ring, Powerful in Data: The Comfort-First Smart Ring. Get Precise 24/7 Heart Rate, SpO2, Sleep, Stress, Fitness & Activity Tracking, Temp, Mindfulness, IP68, No Subscription, Men & Women.

FIND YOUR SIZE: Order a sizing kit first to find your fit; then order Your Smart Ring. Alternatively, you can use the JKLY Store to Size Yourself. PRECISION FIT, YOUR WAY: Wear it on your index finger for a feel optimized for maximum comfort, or on your middle/ring fingers with no loss in accuracy. The choice is yours. ZERO SUBSCRIPTION, FREE APP: Enjoy full access to all smart features – no monthly fees, no hidden costs. Our app is free forever, directly paired with your physical ring. No membership tiers, no annual commitments. Just unlock continuous health insights with a single purchase. PRECISION THROUGH ADAPTIVE SENSING: The ring continuously monitors 40+ physiological metrics – including sleep patterns, activity levels, stress indicators, cardiovascular function, sleeping temperature, and other health biomarkers. Its adaptive sensing technology personalizes data collection for accurate 24/7 health insights. Dynamic Stabilization: Filters finger movement fluctuations. Skin Tone Tech: Reflects optical signals from different skin colors. EXTENDED POWER PERFORMANCE: Experience up to 7 days of uninterrupted operation without screens or disruptive alerts. The minimalist design stays unobtrusive during workouts and social engagements – often noticed only when others admire its aesthetic. ENGINEERED FOR CONTINUOUS WEAR: Our ring’s upgraded design enhances comfort and fit while maintaining water resistance. Crafted from aerospace-grade titanium, it delivers exceptional durability with hypoallergenic properties suitable for sensitive skin. ›See more product details ›See more product details