Amazon has discounted the Nokia Body Cardio, which is a WiFi Smart Scale with Body Composition, and it is usually priced around $149.99, but right now you can pick it up for just $121.73. That is a pretty good deal for this smart scale, seeing as it doesn't drop in price all that often.
The Nokia Body Cardio (which will soon be renamed to Withings, it's inevitable), is their highest-end smart scale. It tracks your weight in the Withings app, as you would expect, but the Body Cardio can do much more than that. It can also track your body fat percentage, as well as your lean mass and your muscle mass. It can also see how much of your body weight is water weight, and even get your heart rate. Now obviously this information isn't going to be the most accurate, since it is getting this all from you standing on the scale, and not measuring different body parts. But it does give you a good idea of how you are doing. Especially if you are looking to drop a few pounds, or put on some muscle. It does work with the Withings app, so you can track it all on your phone and see how you've done over the past week, month, or even year.
This item is 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.