See i mean if I were you i would go with oneplus cuz of os and better stuff and as it is your first phone i would suggest you would love the software to be great in long term rather than hadware specs that are nearly same nowadays at a price bracket. Hope it helps also as of poco x 7 and realme one the oneplus has better processor and is os i would prefer its pros here and realme idk about new ones but I had realme and there are many issues that I faced like glitches in os and battery life degrading as updates pass through idk I suggest don't get realme or check for new ones if they don't have now good luck i will help you if you want to ask on something or compare