Receive a 20% Cash Back coupon and Free Shipping on all Garmin purchases! Whether you’re an athlete in training or just trying to maintain a healthy weight, the Garmin® Index Smart Scale provides the metrics you need to track progress and see results. It measures weight (in pounds or kilograms), body mass index (BMI), body fat/water percentage, bone mass and skeletal muscle mass. Syncs with your mobile device via Wi-Fi and a free app. Compatible with iPhone/iPad (iOS 9.0+) and Galaxy/Android (OS 4.0+). Recognizes up to 16 users. Weight limit 400 lbs. Batteries included.