Description is an accepted method for body compositions measurement in medical field.[Accurate Measurement] Equipped with high-precision anti-interference chip to precisely sense your every body weight change as little as 1.1lb; unit conversion between Jin( 61;1/2 kilogram), Kilogram and Pound are available.[Heart Rate Measurement] Measures your heart rate while weighing and records your heart rate change in the resting state.[Analysis Report Suggestion] Compared with the body data of crowd that in the same age, giving you proper suggestions towards losing fat, exercise and living habit; plenty of sports courses are provided on HUAWEI Sports Health App to help you get healthy and slim.[Smart Scale App] One scale can store up to 50 users body data and able to recognize each family memeber based on history; the scale can also store up to 200 pieces of data even without connected to the App.Note:* Batteries not included.* Only supports Android 4.4 or later.* Do not support iOS.* Scale 2 may not able to recognize the users whose body data is very similar to another one.* Non-medical equipment. All the data results are for reference only, not for diagnosis or medical use.* Not applicable for the pregnant, infant and the people implanted with medical device.* For the people under 18 years old or over 65 years old, the product can only provide accurate measurement of weight.Specifications:Model: LUP-B19Material: Tempered Glass 43;Metal 43;ABSColor: WhiteMeasurement Range: 2.5kg~150kg / 5.51lb~330.69lbBT: 2.4GHz, BT4.2 43; BLEFrequency: AC 50KHZBattery Type: AAA Battery(3pcs)(batteries not included)Item Size: 26*26*2.15cm / 10.23*10.23*0.84inItem Weight: 1230g / 43.38ozPacking List:1 * Scale1 * User Guide