Track smarter. The Sunny Health & Fitness Smart Body Composition Scale boasts 20 features to measure your body's weight and holistic composition so you can see progress and stay motivated. Featuring convenient Bluetooth connectivity, you can sync your real-time health metrics to our digital health center on the Free SunnyFit app. View your data in the app and gain access to hundreds of free fitness programs, taught by our professionally certified trainers. This scale comes with 3 Aaa batteries and has a portable, compact design so it can easily be stored out of the way when not being used.