Should I trust a digital scale to wiegh myself??

i just bought a 50.00 dollar digital scale from GNC and supposedly it measures your overall weight, body fat percentage and amount of water in your body.

Public Comments

1. my scale is off by 5 pounds but I can't figure out if its too much or too little. regardless . I use it everyday to judge how I'm doing. Because a scale still reads if you gain weight or if you lose it. Id be skeptical of a scale like that only because I don't know how it would know the water amount and all that stuff. I suppose I'd have to read it before I would trust those numbers
2. Yeah I guess
3. I would trust it to work, I had a digital scale from sharper image and it was exactly on with the scales at weight watchers. My little digital scale for food is correct too. Try picking up different weights and then putting them down. Does it acknowledge the correct difference in weight? My $50.00 scale still works, over ten years later.
4. I used to calibrate all types of scales and balances. Generally, the cheap stuff (less than $1000) is accurate to two least significant digits. This means, if your weight is displayed to the nearest pound, the reading is accurate to (plus or minus) two pounds. Your scale will probably "repeat" much better than that -- meaning it's more precise than accurate. Presumably,the only thing it actually measures is your weight (no other sensors). You probably input your height and statistics are used to calculate your "probable" body fat percentage and water. That stuff is bullshit window-dressing -- empty "features" to sucker the gullible.