There are tons of activity trackers out on the market that are available to pick up, and they all come from various manufacturers while some, like Fitbit offer up quite a few different options. One of those options is the Fitbit Flex wireless activity tracker which is not quite as advanced as the more recent Fitbit Charge HR and Surge trackers, mainly because it's an older model. That more basic build though affords it a lower cost, normally coming in at $99.95. Right now though, you can pick it up on sale for just $67.99, bringing it down in price by more than $30.
The Fitbit Flex activity tracker is made of a soft, silicone material that is capable of tracking multiple different activities that you'll encounter on a daily basis. It can track your steps taken, your distance traveled, and your caloric burn, and it can help you meet your daily set goals that you create from the Fitbit application it's connected to. It also serves as a sleep tracker and will keep track of important sleep details like sleep cycle which can help you to improve your overall sleep quality. You can also set alarms from within the Fitbit app and use the Flex as a silent alarm to wake you up when you need it to.