Hi a2dox,
The coil count by itself isn’t particularly important (see this article and post #10 here) and I would focus much more on careful testing using the testing guidelines in the mattress shopping tutorial than the number of coils in the springs.
There is more about the most important parts of the value of a mattress purchase in post #13 here.
In terms of suitability … only your daughter can decide which mattress is the most suitable choice in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) based on her testing.
In terms of durability (which is the next most important part of the value of a mattress purchase) … the specs you provided don’t include any information about the quality of the materials in either mattress (see this article) so it’s not possible for me to make any meaningful comments about the quality or durability of the materials in either mattress.
The retailer you are buying from should be willing to provide you with the specs you need to make a more informed choice and if you can find out and post the information on the forum I’d be happy to make some comments about either or both mattresses or let you know if I can see any obvious weak links in either of them.
She could still tell which mattress was the most suitable for her in terms of PPP with her testing and she could still compare the other parts of the “value” of a mattress that may be an important part of her personal value equation but there is no way to know the quality or durability of the materials without knowing the specs so from a durability point of view you would be making a completely blind purchase without them.
Phoenix