[Oni]

Are you finding that you prefer iOS or Android? If you are purchasing a phone to match your preferences, then it's not stupid at all. But swapping that many times indicates you're indecisive.

With the price of phones these days, I recommend buying a phone that will last you 3-5 years. There's cheaper ways to test out iOS or Android, so maybe get a last-gen or pre-owned model if you're testing things out.