Weight Watchers markets a variety of scales designed to help you reach your weight loss goals. Most models will store height and age data for up to 10 users, which enables the scale to calculate your body mass index (BMI) and other helpful indicators of healthy weight. When you weigh in, the scale will display your current weight, BMI, water weight, bone mass, and your body fat percentage. Some models also calculate your change in weight from your last weigh in and your body fat weight.
Turn the scale upside down to locate the kilogram/pounds switch. Set according to your preference.
Set your user number. Press the "set" button to display "user 1" or "P-01," depending on your model. Use "up" and "down" buttons to choose a user number. Press set again to confirm your user number. Some models store four users, while others will store up to 10.
Set your height. Once you have set your user number, the scale will flash "HT." Use the "up" and "down" buttons to enter your height. Hold the button down to move through numbers quickly. Press set to confirm.
Set your age. After confirming your height, the scale will display "AGE." Use the "up" and "down" buttons to enter your age. Press set again to confirm.
Set gender. Once you have confirmed your age, the gender icon will flash on the scale. Use the "up" and "down" buttons to choose the correct gender, and press set to confirm. Once you confirm your gender, then your user number, height, and age will display for a few seconds before the scale shuts off. Wait for the screen to go black before weighing in.
Weigh in once a week. Tap the scale and wait for "0.0" to appear on the screen. Push the "user" button until your correct user number is displayed. Wait for the scale to display "0.0" again before stepping on. The scale will then show your current weight, followed by your body fat percentage, your body water percentage, your bone mass value, and your BMI. Some models have abbreviations preceding the number: "bF%" indicates body fat percentage; "H2O" indicates body water percentage; "bone" indicates bone mass value; and "b" indicates BMI score.
Use the analysis to help you gauge your weght loss progress. Conair, the manufacturer of Weight Watchers scales, provides an online guide for healthy BMI scores, as well as for body fat, bone mass, and body water percentages. (Reference 1) According to the Centers for Disease Control and Prevention, BMI is a generally dependable indicator of healthy body weight, and a BMI score between 18.5 and 24.9 is in the normal range. (Reference 2)
Weigh barefoot for best results. If your soles are hard or dry, apply a small amount of lotion before weighing in. Weigh-in at the same time of day, on the same day of the week, using the same scale, and in the same clothes each time in order to get a more accurate indication of your progress. To view your current weight without the extended analysis, tap the scale to turn it on and wait for "0.0" to appear on the screen before stepping on the scale.
Conair recommends that pregnant women or people with electrical implants such as pacemakers should not use the Weight Watchers scale.