Smart scale is the easy way to keep track of your health journey. See all the historical data of your progress and health trends with ease. It is intelligent enough to match measurements to the correct user profile, automatically. Fast wireless data transfer means you can view your measurements in seconds. According to system requirements for Android 6.0 and above, the app needs your access to your location to use Bluetooth. Your data is encrypted before being transmitted via Bluetooth from Smart Scale to your smartphone to ensure security and privacy in the EufyLife app, it is only used to calculate your physical parameters and will never be used for other purposes. Four auto-calibrating G-shaped sensors increase accuracy by 10%, ensuring that measurements are accurate and reliable. They work in conjunction to detect weight fluctuations in 0.1lb / 0.1kg increments.