Specifications Hign-concerned Chemical:None Waterproof Grade:5ATM Model Number:TK7 Display screen:No NFC Support:No Function:Message Reminder Activity Tracked:Activity Tracker,Steps Tracker Metrics measured:Blood Pressure Monitor,Sleep Monitor,Blood Oxygen Monitor Item Weight:5g Certification:ce,FCC Brand Name:SIMSONLAB Battery Capacity(mAh):20mAh Ring function1:SpO2 Monitoring Ring function2:Blood Pressure Monitoring Ring function3:Step Counting Ring function4:Activity Tracking Ring function5:Remote Care Ring function6:Sleep Monitoring Compatible Systems:Android 5.0+, HarmonyOS, iOS 10.0+ Battery Life:Approximately 3 days with Bluetooth connection (varies by usage frequency) Connectivity:Bluetooth 5.0 Low Energy Water Resistance:5ATM + IP68 Smart ring for men:Smart ring for women Smart ring for children:Smart ring for student Smart ring for xiaomi:Smart ring for huawei Smart ring for oppo:Smart ring for vivo Smart ring for redmi:Smart ring for apple Product Overview A multifunctional smart ring integrating heart rate, SpO2, blood pressure monitoring and activity tracking. Designed for health management and daily wear with Bluetooth 5.0 connectivity and multi-language support. Basic Specifications Product Type: Health Monitoring Smart Ring Compatibility: Android 5.0+/HarmonyOS/iOS 10.0+ Housing Material:Outer layer: Stainless steel Main body: Epoxy resin Color Options: Black, Silver, Gold, Rose Gold Hardware Configuration Processor: JieLi AC6323A4 Memory: Stores up to 15 days of data (daily sync recommended) Sensors: Heart rate: Goodix GH3018 SpO2/Blood pressure: High-precision optical sensors Battery: 15-20mAh (3-day typical usage) Charging: Magnetic charging (1 hour full charge), optional charging case available Water Resistance: 5ATM (swim-proof) + IP68 (dust/water resistant) Connectivity: Bluetooth 5.0 (low energy) Weight: Approx. 5.0g Width: 7mm (slim design) Key Features Health Monitoring: 24/7 heart rate tracking SpO2 monitoring Blood pressure trends Sleep analysis (deep/light/REM cycles) Activity Tracking: Multiple exercise modes Step counting & calorie tracking Remote Care: Family health data sharing Battery Life: 3 days typical use 1-hour quick charge Durability: Swim-proof (5ATM) Dust/water resistant (IP68) Package Contents Smart ring Magnetic charging cable User manual QC certification card Packaging box Supported Languages English, Chinese (Simplified/Traditional), Japanese, Korean, French, German, Spanish, Portuguese, Italian, Russian, Arabic, Turkish, Persian, Vietnamese, Thai, Hungarian, Czech, Slovak, Polish