Body Weight Chart

A simple weight tracker that allows you to check your body mass index (BMI).

Record your body weight and check it with chart! You can control your BMI with this application.
By connecting Body Weight Chart to Google Fit, allows you to check your fitness data from multiple devices.
This app also make backup data for cell-phone upgrade.

Body mass index (BMI) is a simple index of weight-for-height that is commonly used to classify overweight and obesity in adults. It is defined as a person's weight in kilograms divided by the square of his height in meters (kg/m2).
For adults, WHO defines overweight and obesity as follows:

overweight is a BMI greater than or equal to 25; and
obesity is a BMI greater than or equal to 30.
BMI provides the most useful population-level measure of overweight and obesity as it is the same for both sexes and for all ages of adults. However, it should be considered a rough guide because it may not correspond to the same degree of fatness in different individuals.
(from WHO website Obesity and overweight )

Work with Google Fit

You can link this app with Google Fit to sync your data.
This app will allow you to view your Google Fit data in a large chart. You can also enter data in a simple input screen with this app and check the data in Google Fit anywhere.
To enable synchronization, select the data to be synchronized and turn on the "Sync" switch.
Weight and body fat percentage data are available in Google Fit; waist circumference data cannot be synchronized.
You will see a Google sign-in screen to allow access to your Google Fit data.