Aria
We love the Aria ... For us the scale connected to our wi-fi with no problem.  We have 2 users using it and see no issues with this.  The weight reading was within 1 pound of the weight watchers scale we had been using.  The Fitbit web app talks well with the MyFitnessPal app which we use for food monitoring.  I'm giving it 4 stars because it does not do so well on the body fat % - seems to be all over the map.  Overall we are very happy the product.
Rating: 4 stars