Meet the Health o meter nuyu Wireless Connected Scale: a smart scale that lets you track your BMI and weight on your smartphone It pairs with your smartphone automatically and has a disappearing display that illuminates when you use the scale. The device has a tempered glass platform that can support up to 400 pounds.
nuyu communicates with your phone via Bluetooth. It measures your weight in 0.1 lb increments. Costs under $45 at this time.[where to get it]