Apart from that, some advanced weighing machines are intended to follow BMI, muscle to fat ratio, lean muscle mass, bone weight, water weight, and so forth. Consider the advice below if you want to buy the best quality measuring scale. Type – Weighing machines are accessible in two types– analogue and digital. Digital measuring scales give more exact outcomes than simple. Since analogue scales utilize inside springs to figure weight, because of which it gets worn out after some time. Digital weighing machines use batteries so they keep going on for long.