Which should be considered more realistic growth model?

The resources for the growth of most animal population are finite and become limiting sooner or later, thus the logistic growth model is considered more realistic.

The equation for model gives a sigmoid shaped graph when plotted against the N in relation to time.

The equation is :

dN/dT=rN(K-N/K)

where, N is Population density at time t

r is the intrinsic rate of natural increase

K is carrying capacity.