Soon I will be operated on the stomach 16 December 2014. I bought this balance to follow my daily weight loss with some comfort. For now everything works perfectly with my laptop and Galaxy S4 Windows 8.1. The scale configuration is quick and simple. I recommend all obese I weigh 142 kg and weighing no problem information is immediately transmitted on my Galaxy S4 and then on my laptop .. The data can not be stored more simply ..