What type of digital scale to buy?

Just picked up a weight watchers scale from walmart......love it! Does a bunch of different things aside from weight and was around 40$

I bought a weight watchers digital scale, you are able to log in your height and age and it calculates your weight, BMI in both pounds and %, Bone Mass %, and water weight %... I am not using weight watchers but have found the scale to be most helpful when it comes to tracking my success. With that being said the %'s are an estimate.. based on a Height vs. Weight chart it does not take into consideration the presence of muscle mass (I only say that because I weight 150lbs. at 5'1" and look like I weigh 20lbs. less due to muscle and fat density difference.. charts say I should be 115lbs. but with my build there's no way! LOL), so use the % as a guide line for up or down rather than an exact value.

I got my digital scale about two years ago at Walgreens for around $10 (I do think it was on sale). It doesn't do anything but show my weight but I think it works perfectly at that