Accurately monitor your body weight and BMI directly on your smartphone. Our smartphone app is simple to use, supports unlimited number of profiles for you and your whole family to get fit & stay healthy. Upgraded auto-calibrating sensors for precise and consistent measurements on a thicker 6mm tempered glass platform to weigh up to 400 lbs. Syncs with your favorite health apps & services: Fitbit, Apple Health, and Google Fit. Get 7-day real USA customer support and our products include the industry-leading 5-year manufacturer's warranty.