A&D Medical Bluetooth Precision Scale with Data Output (UC-321PBT) - The World's 1st Continua-certified Bluetooth Precision Health Scale is a perfect solution to monitor your weight precisely. Record and store your health data to your computer and share with your doctor or health provider. Perfect for exact digital weight measurements, dialysis patients who need to maintain weight in a small range, athletes who need to control their optimum weight for competition. 450 pound (200 kg) capacity with fine resolution of .2 pounds (100 grams) with kg / lb selection Low profile, rugged construction, motion tolerance, connects to many iOS and Android apps including A&D Connect Smart and WellnessConnected