LANZOOM智能手表男多功能蓝牙运动计步手表防水

1. Is it waterproof?
Answer: 50 meters waterproof
2. Is it authentic?
Answer: It is an official product
3. Does it need to be charged?
答：不需要充电，只需更换电池就可以。智能电池通常可以使用240天左右。