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.
Fitbit Blaze v Fitbit Charge HR: Battery Life. On paper, it's neck and neck on battery life. Both the Blaze and the Charge HR claim to offer a solid five days of tracking. It's a shame it's not a full week, but you'll have to look at the Fitbit Zip to get the best Fitbit for battery life. There is more with the Blaze that's likely to impact on battery life on a daily basis.