Since the release of the Mi Series, the most expensive flagships, with an incredible 108MP camera by Xiaomi. It has been a talk of the town, whether Mi 10 and Mi 10 Pro comes with a waterproof IP rating. Furthermore, consumers are foreseeing a lot from both smartphones, and looking at the price; the expectations seem reasonable. A Flagship is the most costly and most superior smartphone produced by a company. And say, It is a tradition that a flagship has to come up with an official IP rating of dust and water resistance.
Mi 10 and Mi 10 Pro, the latest flagship introduced by Xiaomi, comes with the official P2i rating. Hence they lack an IP rating. P2i is a company that develops protective coating agents through nanotechnology, for electronic devices, science, and lifestyle products. There are major differences in the key specs of both smartphones. Besides the waterproof rating, both phones come with the same P2i water resistance rating.

What Is The Difference Between P2i Rating And IP Rating?
Basically, there are two types of waterproofing techniques used in smartphones: Structural waterproofing and Nano-coating. For instance, the latest flagships by OnePlus, Samsung phones, and Apple phones offer structural waterproofing, which is rated by IP68 (Ingress Protection). In structural waterproofing, the entire body of the phone is completely sealed to achieve high-quality waterproofing.
On the other hand, nano-coating offered in Xiaomi Mi 10, and Mi Pro does not cover the entire body of the smartphone. Instead, the coating is used in selective positions such as the smartphone’s circuit board, USB interface, elements, and other openings of the phone. From where the water can apparently make its path inside the device. Nano-coating technology is rated by P2i (Perform Protect Improve).