I have more digital scales that I can count at the moment but the Weight Guru's Smartphone Tracking Scale is my favorite so far.
Not only does this scale do what others do which is get my weight, body fat percentage, water weight and bone density but it syncs to my iPhone. That in itself is pretty damn cool. Once I'm done weighing myself it shows a bar code on the reader so that once I open my app I can take a photo of it and voila: my numbers are synced to my smart phone without me having to enter them all in manually.
So far the only complaint I have is that the lighting has to be perfect in order for the camera to capture the code. There have only been a few times that I had to get back on because my phone wasn't recognizing it but that was after 30 seconds with not amazing lighting.
I'm currently the only one using this particular scale but the way it recognizes a new user is by the weight difference. This is a great feature if you have a partner or roommate that is way bigger (hopefully not smaller!) than you and you both want to use it.
Back to the app, another feature that I like about this scale is that it not only tracks your loss from when you first started using the scale but it also compares it to previous week. As a (not so new) runner I know that my weight will fluctuate as I burn fat and gain muscle so seeing the comparison from the previous week is something nice to see on my phone.
Unlike the Ozeri scale that I review last month I am giving this one a serious recommendation. It's great if you're an app junkie like myself!
***I received one or more of the products mentioned above for free using Tomoson.com. Regardless, I only recommend products or services I use personally and believe will be good for my readers.