Well at the start of the generation PS4 was really way expensive than XB1... R$ 4000 vs R$ 2200.I think it comes from the assumption since Microsoft has a factory there, they're able to make them cheaper to avoid the really high import tax.
I always thought it sounded suspect as an excuse either way.
But even so PS4 sold more as we have 2016 reports showing PS4 ahead.
Today the prices are more normalized: XB1 R$ 1600 vs PS4 R$ 2100.
Either way even being a hell of expensive at launch it is more popular here.
PS. Pro here is around R$ 2800 and Xbox One X R$ 2500.