There is a couple reasons, I am not a huge fan of the shape, meaning I would rather have a smaller screen, but thicker phone to allow for a bigger battery. Pixel 4 screen size was perfect in my opinion. There is also something about the square corners I don’t really like, can’t really put my finger on it, but again the Pixel 4 was great. I only upgraded because the battery was wearing out. Also with the 6a, not a great camera. Not any better than the 4. I would recommend trying Pixel 7 or waiting for the 8.