Revoiz Smart Ring Q1 21mm Black

Product Summary

• Research-Grade Sensors-Monitoring your sleep, activity, recovery, temperature, heart rate, stress, and more.
• Comfortable and timeless ring design, IP68 water resistant and super light - perfect for every occasion from work to workout to night out.
• Long Battery Life Up to 4-6 days of battery life (full charge in 20-80 minutes)
• Packing list: Smart Ring, Charging Line, Instructions.