Brand: Premium Unbranded / High-Performance electronic smart wearable. Materials: Lightweight, medical-grade Polished Titanium with a smooth resin interior. Vintage/Modern: Modern 2026 health technology featuring advanced biometric sensors. Color: Sleek Matte Black finish for a discreet, professional jewelry look. Pattern: Minimalist Solid design with an ultra-thin 2.6mm profile. Usage: Tracks Heart Rate, Sleep, and SpO2 with 7-day battery life.
eBay