This balance is excellent for its first fairly reasonable price for a balance impedance.
By connecting with a Bluetooth enabled device BLE (4.0) and installing the application "International LifeSense" available on the play store, you have access to your body fat, body water, muscle mass, bone mass and to set goals, although the design and optimization and reactivity app can be greatly improved after two weeks of use, is nickel. It's just not possible to connect the device to several different devices. Only one (smartphone or tablet) and create the different members of the family in one account of the application. The data will be automatically transferred to all devices via internet.
The weighing is almost immediate and then take about two seconds time to take other measures. It is very accurate and the seller is just great. Fast shipping and it will send you by mail after your purchase, the manual in French :).
My use every morning I wake, I launched the application that asks me to activate bluetooth on my tablet, I weigh myself, and the data is transmitted, the application asks me how users associate data .
I recommend this product without any problems.