Anillo inteligente con monitor de sueño, frecuencia cardíaca y oxígeno en sangre: rastreador de actividad física con Bluetooth para obtener información de salud las 24 horas (tallas 7-13, negro/plateado)

Health at Your Fingertips​​ Meet the ​​Smart Ring​​ – a ​​4g featherlight tracker​​ that monitors ​​sleep stages, heart rate, blood oxygen (SpO2)​​, and daily steps via Bluetooth. ​​Key Features​​ ✔ ​​All-Day Sleep Tracking​​ – Analyzes deep/light/REM cycles ✔ ​​Real-Time Heart Rate & SpO2​​ – Vital sign alerts ✔ ​​Step Counter & Calorie Burn​​ – Fitness companion ✔ ​​Bluetooth 5.0​​ – Syncs with iOS/Android ✔ ​​7-13 Sizes​​ – Adjustable for any finger ​​Designed for Comfort​​ ​​4g Weight​​ – Barely noticeable wear ​​Hypoallergenic Material​​ – Safe for sensitive skin ​​Black/Silver Options​​ – Unisex minimalist style ​​Tech Specs​​ ​​Battery​​: 15-18mAh (3-5 days per charge) ​​Charging​​: Magnetic cable (included) ​​Sizes​​: 7-13 (measure finger circumference) ​​Water Resistance​​: Daily splash-proof