Description Smart Ring Fitness Ring Smart Rings For Men Women IP68 Tracking Ring With Pedometer Calories Sleep Smart Ring Android IOS Features: 1. Elegant Artistry: Our Smart Ring combines the elegance of art with the intelligence of technology, providing you with a stylish and sophisticated accessory that seamlessly fits into your daily life. 2. Convenient Portability: Designed to be compact and lightweight, our smart ring can be easily carried with you wherever you go. Its pocket-sized body allows for effortless transportation, ensuring you never a beat. 3. Innovative Experience: Experience the future of wearable technology with our smart ring. With its innovative design and feather-light feel, you’ll forget you’re even wearing it. Enjoy the ultimate comfort and convenience. 4. Sleep Monitoring: Gain into your sleep patterns with our smart ring’s advanced sleep monitoring feature. Track the percentages of REM, light sleep, and sleep throughout your entire sleep cycle, helping you cultivate healthier sleeping habits for overall well-being. 5. Daily Activity Tracking: Stay of your fitness goals with our smart ring’s daily activity tracking functionality. Monitor your steps, distance, and calories burned, empowering you to lead an active and achieve optimal health. Product Description: Ring size inner diameter (mm): 8# diameter：18.1mm perimeter:56.9mm 9#diameter：18.9mm perimeter:59.5mm 10#diameter：19.8mm perimeter:62.1mm 11#diameter：20.6mm perimeter:64.6mm Material: Stainless steel Bluetooth Version: BLE 5.1 ​​ Battery capacity: 18mAh Working Time: About 5-7days Charing time: 0.5H G Sensor: QMA6100P Charging Cable: Magnet Cable (With SMT IC) IP68 Charging Requirement: Charging 1A or less Function: Remote photography;Multiple sport modes;Sleep detection (Sleep time ,Sleep quality);Step count;Synchronous data to APK/APP System requirements: Android: 6.0 or above iOS: 11.0 or higher Operating temperature: 0~45°C Storage temperature: -10~55°C Working humidity: 5%~95% (non-condensing) Electrostatic protection: electrostatic standard contact: ± 6KV, air: ± 10KV Surge protection: 12V Drop requirements: refer to GB/T 2423.8 standard Vibration requirements: refer to GB/T2423.10 standard Charging temperature protection: 45°C Device Size: (mm) 8\9\10\11 (reference standard) Gift box Size (mm):90*90*46mm Net Weight (g): 4.5g Corss Weight (g): 76g (including packaging) Packing list: Ring*1 Charging case*1 Instruction manual*1 Health Rings Powerful, can meet a variety of user needs Health Rings Stylish design to match modern trends Health Rings Easy to operate, easy to use, easy to use Health Rings Cost-effective, affordable, value for money Health Rings Provide perfect after-sales service to solve user problems Health Rings It is highly practical and can fully solve the problems you encounter