Ring, Powerful & Advanced: Sizing Kit

Important: Before purchasing, find your perfect fit with the Ring Sizing Kit — Choosing the right size ensures optimal comfort and accuracy. Plus, the cost of your sizing kit will be credited toward your smart Ring purchase at checkout. Alternatively, you can use the JKLY Store to Size Yourself. Wear it on your index finger for a feel optimized for maximum comfort.

• PRECISION FIT, YPRECISION FIT, YOUR WAY: For the most comfortable fit, we recommend measuring your finger circumference and consulting our size chart, or buy our sizing kit prior to your order. This simple step helps prevent the need for exchanges or returns.
• PRECISION SIZING TOOL - Our tailor-made sizing kit delivers the accurate measurement solution. Test and confirm your ideal ring size personally before final purchase.
• UNIQUE SIZING SYSTEM - Our smart ring sizes follow distinct specifications. Use our dedicated sizing kit with included instructions for perfect fitting. Available in full sizes 6-13 (half sizes not offered).
• OPTIMAL PERFORMANCE - Correct sizing ensures peak sensor accuracy, all-day comfort, and seamless user experience.
• FINGER SELECTION GUIDE - Wearable on any finger of either hand. For best results, position on index, middle, or ring fingers. Always measure your intended wearing finger.