Amazon is discounting many Fitbit Activity Trackers right now, taking up to $50 off of each model. This is one of the few times that multiple Fitbits are on sale, and it is definitely worth taking advantage of right now, especially if you're looking to get more active and lose some weight.
The Fitbit Alta, Alta HR and Charge 2 are all $30 off, bringing them down to prices of $99, and $119 respectively. These are great fitness trackers to pick up for those that are just looking for a fitness tracker to track their fitness. The Alta HR and Charge 2 both have heart rate monitors - which is why they are $119. And they both have larger displays to show your stats for the day. These will track your steps, calories burned, activities completed and even show some notifications on your wrist - like phone calls and texts. Now the Fitbit Ionic is also on sale, for $50 off. It's priced at $249, while the Special Adidas Edition is $279 (also $50 off). The Ionic can do everything that the other trackers can do, but it also is waterproof, for swim tracking. It also has a slew of other apps included, since it is also a smartwatch. So you can use it to pay at Starbucks, use it for your boarding pass and much more.
These are also eligible for Amazon Prime's free shipping. Which includes free two-day shipping, and pretty cheap (usually $3.99) next-day shipping if you need it extra fast. If you are not an Amazon Prime member yet, you can sign up for a free trial of Amazon Prime. You'll get 30 days free (if you're a student, you get 6 months), and then it's $119/year (or $59/year for students). Prime members do get a whole lot more than just free shipping though, so be sure to check out the full benefits.