Studies have shown that continuously monitoring a buildingâs energy systems can lead to reductions of 10 to 15 percent in annual energy bills. For the typical 50,000-square-foot retail building, thatâs equal to about $8,000 in savings per year!
Battery Life. Fitbit says the Charge HR will last about 5 days on a charge. That's about half the time of the Charge, but that endurance is reasonable considering the HR is constantly monitoring your heart rate.
Compared to the $100 Fitbit Flex, the Charge has a taller and wider display, allowing it to show time and step count, and it has longer battery life of seven days on a charge. It also has automatic sleep tracking, so users don't have to tell the device when they're going to bed. Fitbit.