I have some very accurate digital bathroom scales that also do all sorts of calculations about body mass index, weight gain/weight loss and, for all I know, will make toast in both imperial and metric measurements for breakfast. (I am a cookery writer so they may even do it cup measurements!) They were packed in the "bathroom box" for the great move from the UK to NZ and duly unpacked and put in the bathroom here. I am pretty sure that I haven't weighed myself since I left London (to move to the North-east before moving to New Zealand) in 2010. I do dust them every time I clean the bathroom.