Redmi Note 7 may have some water protection membrane
Redmi Note 7 was announced by Xiaomi on a day before yesterday and we have not seen any major difference in terms of Features and hardware.
Although the handset isn't IP-certified it probably have some prevention from the splashes of water. If you see the image released by one the Chinese website. You can find a membrane on the loudspeaker which shows that handset may have some water protection from the accidental water drops or splashes.