• The comfortable and lightweight wearing experience sets it apart from other smart wearable products
• In multiple health modules such as exercise, heart rate, sleep, exercise, and stress. It can provide detailed insights and professional analysis to monitor your health
• The minimalist appearance surpasses the complexity of traditional wearable products. Combining fashion simplicity with elegance, both inside and outside, it is the pinnacle of both aesthetics and hardware strength
• 5ATM waterproof grade, no need to take it off, suitable for daily hand washing, bathing, swimming, and other wading scenes
• The intelligent ring is equipped with the most efficient hardware to provide accurate information monitoring data

Specifications:

• Waterproof: 5ATM
• Material Shell: 316 steel
• Thickness: 3mm
• Bluetooth version: 5.1
• Battery type: polymer battery
• Working temperature: 0-50℃
• Battery capacity: about 20 mah
• Charging time: 1 hour
• Usage time: 3 days-5 days
• Charging: magnetic charging
• Compatibility: Supports Android 5.0 and above; Apple IOS 10.0 and above
• APP software functions:
• Exercise: distance/calories/all-day step statistics/goal achievement/effective activity volume, etc.
• Multi-sport mode: supports more than 100 sports modes
• Heart rate: 24-hour automatic continuous heart rate test
• Sleep: 24-hour accurate sleep data statistics (accurate sleep statistics at any time)
• Blood Oxygen: 24-hour continuous blood oxygen test
• Somatosensory games: APP supports somatosensory games
• Other settings: heart rate warning, blood oxygen warning
• WeChat Sports/Apple Health Access WeChat Sports and Apple Health
• Languages supported by the APP: 24 languages
• APP: CYFIT

Size: 

• #7: Inner diameter: 17.6mm
• #8: Inner diameter: 18.4mm
• #9: Inner diameter: 19.2mm
• #10:  Inner diameter: 20mm
• #1:  Inner diameter: 20.8mm