Garmin Ltd. Vivosmart 4 - Small/Medium

Garmin Vivosmart 4 Fitness Tracker is a slim, smart activity tracker blends fashionable design with stylish metal accents and a bright, easy-to-read display. Includes advanced sleep monitoring with REM sleep and can gauge blood oxygen saturation levels during the night with the wrist-based pulse Ox2 sensor. Features dedicated activity timers for walks, runs, strength training, yoga, pool swims and others. A wrist-based pulse Ox sensor lets you estimate blood oxygen saturation while you are sleeping or you can spot-check your oxygen levels anytime during the day. Available in gray/silver color.