OnePlus 13 to improve upon its predecessor's water resistance

The latest rumor posted on Weibo by Digital Chat Station is about the upcoming OnePlus 13. Specifically, DCS claims that the phone will get IP68 and IP69 rated for dust and water resistance, and that would be quite the improvement compared to the OnePlus 12 which is just IP65 rated. Here's what the IP code says about that second digit...