Neither one of those are equivalent to a P1S. They’re 2 tiers above it. Equivalent Bambu printers sell for about the same price.
I have printers from both companies. There are tradeoffs for each, but Prusa isn’t 4x more for an equivalent printer.
I did get a particularly good deal on the P1S combo apparently, the price on their website already higher than what I paid and it's significantly less in Canada than the US with exchange rate. Are they exactly equivalent, dunno, but both are the cheapest Core XY models with enclosure + colour changer that either sell.
Prusa is also cheaper in the US and EU than Canada.
Both are enclosed and both do 4 colors in a variety of materials. Both are the cheapest version of that that each company offers.
IMO it's more like comparing a Honda to a Mercedes. I'm sure the Mercedes is better but a Honda gets you places all the same.