Money Back Guarantee. 5-YEAR WARRANTY. 1 MILLION + HAPPY USERS AND COUNTING - Yunmai is tracking body statistics for more than 1 Million customers. World Leading Smart Scale Brand.;10 PRECISION BODY MEASUREMENTS - Accuracy makes us the best body fat analyzer with up to 10 different body composition statics, including weight, BMI, BMR, hydration, bone mass and more - all for better weight loss management.;FREE PROFESSIONAL APP (iOS & Android) - Sync with Apple health, shows all weighing records and run chart for all body measurements.;BLUETOOTH 4.0 CONNECTIVITY - With smart step technology and real-time updates through Bluetooth 4.0, you can use the included free app to automatically track results with your iPhone or Samsung Galaxy and crush that diet plan.;MASSIVE 16 USERS TRACKING MANAGEMENT & Sleek, Strong Design - Yunmai scale tracks up to 16 users at a time that works flawlessly with the app. Break down fat loss and fortify exercise routines with individualized graphs and charts. More than a high-quality fat loss tracker, it also boasts an impact-resistant tempered glass, crystal clear 3.8 INCH LCD display, and artistic industrial design for truly beautiful bathroom and home decor.