5000psi High-Strengh Concrete vs. 4000psi High-Strength Concrete

I’m about to go out and start hauling concrete bags home in the Ridgeline. I’m beginning to think for simplicity’s sake that the Sakrete high-strength (4,000PSI) all around would make life easier. (Lowe’s carries that, and HD has the QuiKrete equivalent.) They don’t seem to carry “standard” concrete.

Any reason I can’t use this for both the slab and the hearth slabs?