VÍVOSMART 4, LARGE, BLACK WITH MIDNIGHT HARDWARE

Accent your style while enhancing your fitness with our vívosmart 4 fitness tracker. This slim, swim-friendly wearable comes loaded with fitness and wellness features to help you make the most of a healthier, more active lifestyle. A wrist-based Pulse Ox sensor lets you estimate blood oxygen saturation while you're sleeping - or you can spot-check your oxygen levels anytime during the day. The device also monitors heart rate at the wrist and includes helpful tools such as all-day stress tracking, a relaxation breathing timer and VO2 max readings.