I used it for about 3 months. 〇 It automatically identifies individuals. 〇 You can view the data in the app. I think these are the good points. It's strong that it can register up to 4 people and automatically identify them, but it couldn't identify my wife, so she bought another one. I contacted the manufacturer, and they said that there can be individual differences, and since it identified the other 3 people, it's not a faulty device. Please see below for details. Body fat monitor/body composition scale that can measure up to 150kg. - Brand: TANITA - Model: BC-768 - Maximum measurement range: 150kg - Minimum measurement range: 100g - Power supply: 4 AA batteries - Functions: Body fat monitor/body composition scale Thank you for looking.