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.
The price. Thatâs a total of $418 for health tracking gadgets, before weâve even hit the gymâ¦ yeesh. The Fitbit Charge HR has currently been on sale for as low as $120, and the Aria is currently $118 (but has been as low as $100). At current prices, that would be $300 for two Fitbits (plus tax), and $118 for the Aria.