16 Essential Body Composition Analysis: Weight scale utilizes BIA to measure 16 body metrics include body weight, heart rate, BMI, muscle rate, body fat, subcutaneous fat, visceral fat, fat-free body weight, body water rate, skeletal muscle rate, muscle mass, bone mass, protein, BMR, heart index, body age. The data stored in the app help to know your body condition comprehensively. In addition, you can weigh yourself anytime without phone, the data will sync to the app once it’s connected again..Extra Large Display & Rechargeable: Different from other bathroom scales that only display weight, the large colorful VA display screen shows your 8 key measurements, including weight, body fat%, BMI, water%, muscle mass, heart rate, bone mass and body type, help you get a clear view of your essential body metrics at a glance. Instead of using batteries, this smart scale is rechargeable via USB cable(package included). Durable built-in lithium battery can be used for a long time and money-saved..Syncs with Fitdays APP & Fitness APPs: Download "Fitdays" app via Apple Store or Google Play. The weight scale syncs the data onto your smartphone automatically via Bluetooth 4.0 BLE. The app provides detailed charts and trends of 16 body composition metrics over days, weeks, months or even years. It can also syncs data to fitness APPs like Fitbits, Google Fit, APPLE Health, Samsung Health, which means you can track & manage your health or share your achievements with friends anytime, anywhere..High Accurate Digital Body Fat Scale: Compare with other weight scales with 4 electrode areas, ABLEGRID smart weight scale adopts advanced ITO tech provides full-surface sensor area for all size feet. Equipped with 4 Auto-calibrating G-shaped sensors & advanced BIA technology can ensure the most accurate measurements of your body composition. The measurement result is accurate to 0.1lb/0.05kg and maximum weight capacity reaches to 396lb capacity. One button to switch the weight unit (lb, kg, st).Multiple User Profiles: The "Fitdays" APP allows for unlimited user accounts, each holding up to 24 member profiles. It’s smart enough to automatically recognize who steps on, each user will receive the data on their own devices conveniently, which allows for seamless tracking of your family’s health. Use guest mode for a non-recorded check-in or baby mode to track your baby or pet's weight growth conveniently, the athlete mode provides more accurate measurements for professional athletes.