The Bigly Night Shade 1 AI Smart Ring - Sleep/Heart and Health Tracker 4th gen chip technology, Up To 10 Days Battery Life, No APP Subscription (Black, Size 9)

• Tracks heart rate, sleep, blood oxygen, and supports hand gestures like brushing TikTok.

• 5ATM waterproof rating supports diving and snorkeling up to 50 meters depth.

• Powered by German Dialog DA14585 chip for ultra-low power consumption and durability.

• Built-in G-sensor for accurate motion and activity tracking.

• Battery lasts up to 20 days on a single charge.

• Compatible with Android 9.0+ and iOS 10.0+.