I've been using this for about two years. While there are no noticeable scratches or stains, there are some minor scratches and signs of use, so please refrain from purchasing if you are concerned. I believe the operation is working without any problems. The following is a product description. ━━━━━━━━━━━━━━━ The Eufy Smart Scale P2 is a smart body composition scale that accurately measures not only weight, but also body fat percentage, BMI, muscle mass, bone mass, basal metabolism, water content, and more. By linking with the smartphone app "EufyLife," measurement data is automatically recorded and graphed. It's ideal for daily health management and dieting. It also supports Apple Health, Google Fit, and Fitbit. 【Main Features】 ・Measures 16 items including weight, BMI, body fat percentage, muscle mass, water content, and visceral fat. ・Wi-Fi / Bluetooth connection supported ・Up to 16 users can be registered ・Equipped with pregnancy mode / baby mode ・IPX5 waterproof specification ・High-quality tempered glass design