Etekcity Etekfit 11lb-400lb Digital Bluetooth Body Fat BMI Weight Bathroom Scale (Certified Refurbished) This Certified Refurbished product is tested & certified by Etekcity to look and work like-new. The product includes all original accessories, and is backed by a 90-day warranty Smart Tracking: Calculate and track weight, fat, water, bones, muscles, visceral fat, BMI, and BMR results within the included smartphone app. (Please CHECK the supported iOS and Android devices in product description. iOS 8 and HealthKit App integration are supported NOW) Achieve With Accuracy: Measurement Range:11lb-400lb5kg-180kg ); graduation increments of 0.2lb /0.1kg; Meet fitness goals with reliable results; 3 available units of measure: lb, kg, st:lb Personalized Calculations: Create customized phone user accounts for refined fitness tracking via Bluetooth connection.(Unlimited user groups) Auto recognition featured to recognize users with personal profiles Modern Accent: Sophisticated blue tempered glass platform and 4.3" blue backlit display offers sturdy functionality and a modern accent to homes and gyms