Smart app syncs with fitness apps. Already have millions of happy global users. Easy setup app syncs with Samsung Health, Fitbit, Apple Health, and Google Fit, offers App for Apple Watch.13 essential measurements. The scale shows body weight, data including weight, BMI, body fat percentage stores to app. You can weigh yourself anytime without your phone. The data will sync to the app once it is connected again.User-friendly app. Download RENPHO app at App store or google play. RENPHO App works with Bluetooth 4.0 And above.