The Body+ has a weighing range of 5-180 kg (9-396 lbs), with a 100 g (0.2 lbs) graduation (except in Japan).
Japan: 5 - 150kg or 9-330 lbs (weighing range) / 0.2kg or 0.4 lbs (weight accuracy).
https://support.withings.com/hc/zh-cn/sections/4411046153745-Body
https://support.withings.com/hc/zh-cn/sections/204132377-Features