{"product_id":"r88-smart-ring-sleep-heart-rate-blood-oxygen-monitor-fitness-tracker-with-charging-case","title":"R88 Smart Ring Sleep Heart Rate Blood Oxygen Monitor Fitness Tracker with Charging Case","description":"\u003cul\u003e\n\u003cli\u003e【Aluminum Alloy Construction】Crafted from high-strength aluminum alloy material for lightweight durability and comfortable all-day wear without feeling.\u003c\/li\u003e\n\u003cli\u003e【Comprehensive Health Monitoring】Built-in high-precision sensors continuously track heart rate, blood oxygen saturation, and sleep cycles with 98% accuracy.\u003c\/li\u003e\n\u003cli\u003e【5ATM Water Resistance】Withstands washing hands, showering, and exercise sweat with professional-grade water protection for worry-free daily use.\u003c\/li\u003e\n\u003cli\u003e【Smart Gesture Control】Innovative shake-to-capture feature allows remote camera control with a simple hand gesture for effortless photography.\u003c\/li\u003e\n\u003cli\u003e【Multi-Sport Tracking】Supports 8 exercise modes including running, cycling, rope jumping, walking, climbing, yoga, dancing, and golf with precise step counting algorithm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: High-Strength Aluminum Alloy\u003c\/li\u003e\n\u003cli\u003eWater Resistance: 5ATM\u003c\/li\u003e\n\u003cli\u003eAvailable Sizes: #7 (17.4mm), #8 (18.2mm), #9 (19.0mm), #10 (19.9mm), #11 (20.7mm), #12 (21.5mm), #13 (22.3mm)\u003c\/li\u003e\n\u003cli\u003eChipset: AC6323\u003c\/li\u003e\n\u003cli\u003eMemory: RAM Flash 4Mbit (RAM: 73KB)\u003c\/li\u003e\n\u003cli\u003eG-Sensor: STK8321\u003c\/li\u003e\n\u003cli\u003eBluetooth-compatible Version: 5.3\u003c\/li\u003e\n\u003cli\u003eHeart Rate Sensor: GH3018\u003c\/li\u003e\n\u003cli\u003eBattery Type: Polymer Pure Cobalt Battery\u003c\/li\u003e\n\u003cli\u003eBattery Capacity: 20mAh\u003c\/li\u003e\n\u003cli\u003eCharging Time: 1.5-2 Hours\u003c\/li\u003e\n\u003cli\u003eStandby Time: 7-9 Days\u003c\/li\u003e\n\u003cli\u003eNormal Usage Time: 3-4 Days\u003c\/li\u003e\n\u003cli\u003eCharging Case Capacity: 200mAh\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -20℃ to 50℃\u003c\/li\u003e\n\u003cli\u003eCompatibility: Android 8.0+, iOS 10.0+\u003c\/li\u003e\n\u003cli\u003eCompatible Software: SmartHealth\u003c\/li\u003e\n\u003cli\u003eHeart Rate Accuracy: 98% (Static)\u003c\/li\u003e\n\u003cli\u003eStep Counting Accuracy: 95%+\u003c\/li\u003e\n\u003cli\u003eSupported Languages: 31 Languages\u003c\/li\u003e\n\u003cli\u003eOTA Support: Yes\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003ePackage included\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cul\u003e\r\n\u003cli\u003e1 x Smart Ring\u003c\/li\u003e\r\n\u003cli\u003e1 x Charging Case\u003c\/li\u003e\r\n\u003cli\u003e1 x Charging Cable\u003c\/li\u003e\r\n\u003cli\u003e1 x English User 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