Garmin vivosmart 4 Knows How Hard You Should Workout - Techlicious
Besides sporting a stylish and smart design, the vivosmart 4 boasts an all new Body Battery monitoring function and wrist-based Pulse Ox sensor. Want... | By Garmin | Facebook
Garmin Vivosmart 4: The First Few Days Hands-on (with SpO2 & Body Battery) - YouTube