The world?s most accurate home-use wireless body composition monitor The RD-901 provides highly accurate body composition readings using the latest Advanced Dual Frequency BIA technology. With integrated Bluetooth Technology, measurements are automatically uploaded to the Health Planet app in seconds. Tanita Health planet - Track your fitness, achieve your goals Your body composition measurements are automatically uploaded from RD-901 Track your progress with easy-to-read charts, graphs and helpful assessments perfect for fine-tuning your fitness program. Set your own target and achieve your personal best. Access your details any time via the Health Planet app or website Product details Medical grade Dual Frequency BIA technology 10 body composition measurements Integrated bluetooth 4.0 allowing data transmission to your iphone Easy-to-read measurements with instant colour coded assessments User recognition- just step on and the scale will start taking a measurement 4 user memory - each with its own colour display Highest weight accuracy - 50g Modern ultra slim design