Ultrahuman Ring AIR smart ring leads the new trend of technology and health! Accurately track sleep, exercise and recovery, and provide personalized guidance to help you achieve physical and mental balance. Create perfect sleep quality, master accurate exercise data, and effectively manage stress.

Features:

- Deep analysis of sleep
- Use caffeine to boost productivity
- Listen to your biological clock
- Monitor body recovery status
- Accurately track activity data

*The Pre-order product is currently out of stock and is expected to be shipped 25-30 days after ordering (no refund will be given in case of delay or other reasons)