Health conscious guy should give a look to Withings WS-30 Wireless Scale. This smart scale regular tracks the log of your weight, BMI patterns, goals you set and the progress. You just have to step on it, the integrated apps wirelessly starts recording trends in your weight and BMI changes and demonstrates the results in a visual interface for you to understand easily and accurately. The WS-30 scale connects through a Wifi or Bluetooth interface and automatically syncs the data for each family member separately with iDevice.
Available at amazon.com for $129