There are plenty of decent scales on the market but most of them can only show your weight. The Body Comp from Withings does that and a whole lot more. It is an app connected body composition scale that also gives you insight into your cardio health.
This scale is precise up to 50g. It can show your bone/muscle/fat mass, visceral fat, and a lot more. It helps you figure out changes in your cardio health with vascular age and standing heart rate. This scale has a sleek design with up to 15 months of battery life. It can recognize up to 8 people. Body Comp has baby and athlete modes.