Smart Ring for Women & Men -100+ Sports Modes, Fitness Tracker with Heart Monitor, Sleep Tracker, Step Counter, Fitness Ring Compatible Android iOS, IP68 Waterproof, No Subscription Fee (Silver, 9)

• Advanced sensors track heart rate, blood oxygen, stress levels, and sleep stages with high accuracy, also monitors calories burned for fitness tracking.
• Crafted from scratch-resistant stainless steel, this ultra-lightweight ring is waterproof and safe for swimming and workouts, available in three finishes.
• Offers up to 7 days of continuous use with a quick 90-minute magnetic charge, ideal for travel and active lifestyles.
• Built-in pedometer tracks over 10 activities with automatic detection, syncing fitness data to your smartphone; includes gesture controls for hands-free operation and women's health tracking.