A: An inferior vena cava filter is a cone-shaped metal device that prevents blood clots from traveling to the lungs, according to Cleveland Clinic. Doctors place this device in the inferior vena cava to catch blood clots that have broken loose, explains the University of Michigan Health System.
Fitbit Blaze requires a maximum of 1 â 2 hours to charge fully. It comes with a rechargeable lithium-polymer battery. Since itâs a smartwatch comes with the fitness tracker. The Fitbit Blaze has the improved battery life and it can go up to 4-5 days per charge.
How To Reset Fitbit Blaze. 1  Find the Back and Select buttons on your Fitbit Blaze (left and bottom right). 2  Press and hold the Back and Select buttons for about 10 seconds, until you see the Fitbit logo appear. 3  Release the buttons.