In my view they both are same thing. Boiling point is the temp at which vapor pressure of water becomes greater than pressure outside vessel. Liquid water change it's phase during this. And. At a given pressure the temperature at which a pure substance change it's phase is saturation temperature. At 101.325 kPa water boils at 100°C. So in my view it's saturation temperature should also be 100°C at 101.325 kPa.
But in Cengel Boles Thermodynamics book it is written that at pressure 101.325 kPa, saturation temperature of water is 99.97°C.
So is it a misprint or saturation temperature and boiling point are different?