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.
For now, the Charge is truly an improved reboot of the Fitbit Force, but thatâs about it. If youâre looking for a comprehensive fitness tracker to give you a bigger picture of your overall health, wait patiently and save your pennies for the Charge HR (again, at only $20 more), due in early 2015.