It's unclear when OnePlus upgraded the newer units of the 8T and 9R with faster RAM, and the company is also yet to officially confirm the change on its website since the 8T's specs page still says LPDDR4X RAM, while 9R's listing has no mention of the RAM type.
We are not sure about the reason behind the upgrade, but if you want to check whether your 8T/9R has LPDDR5 RAM, you can install ADB on your PC and run the following command with your device connected: adb shell getprop ro.boot.ddr_type.
You can also install the Termux app and run the command on your smartphone itself without the "adb shell" part.
If the value returned is 0, you've got LPDRR4X RAM on your smartphone, and if it is 1, then your device has LPDDR5 RAM onboard.
I have 9R. Downloaded and run the command you mentioned, it says "1". I was already satisfied with it but that's good to know lol. I don't live in India even I'm using that variant. No connection issues, no such issues at all...
That's due to your location problem for poor data connection.....and wifi signal week due to poor lan connection.... because I am using 9R I didn't face any issues like that till....beast mobile 🔥🔥
9R is a pathetic phone ever created. I just bought it and it has poor network connection. My phone is out of range most of the time. Internet connection including wifi connectivity very poor. In short, dont buy this phone.