About This

• APP supports languages: English, French, German, Italian, Russian, Portugal, Turkish, Hungarian, Dutch, Danish, Greek, Spanish, Polish, Finnish, Czech, Croatian, Swedish, Hebrew, Persian, Arabic, Simplified Chinese, Traditional Chinese, Japanese, Korean, Thai, Vietnamese, Malaysia, Indonesian, Hindi
• 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.
• Main Function Parameter: Heart rate monitoring, Blood oxygen monitoring, Pressure measurement, HRV Lorenz scatter plot, Step counting Exercise, Remote care, 24/7 scientific sleep, Photo taking, Blood components, Dynamic heart rate measurement, Blood oxygen saturation measurement, Pedometer/calorie expenditure, Surface temperature detection, Offline data recording
• System requirements: Android 8.0 and higher versions; IOS13.0 and higher Charging method: Magnetic suction charging Battery life duration: Around 1 week Charging time: 1.0 hour Bluetooth distance: 3-5 meters
• Product material: Epoxy resin, metal Ring weight: 3 - 5 grams Battery: Lithium Polymer Battery Communication method: Bluetooth Waterproof Level: IP68

Overview

• Operating System : Android, iOS
• Special Feature : Controlling photography, video switching, Finger temperature tracker, Fitness tracking, Sleep Monitor, Stress tracking Controlling photography, video switching, Finger temperature tracker, Fitness tracking, Sleep Monitor, Stress tracking
• Connectivity Technology : Bluetooth
• Wireless Communication Standard : Bluetooth
• Battery Cell Composition : Lithium Polymer
• GPS : GPS Via Smartphone
• Shape : Round
• Brand : JKLY
• Model Name : R20
• Style : Modern