  Statefinder diagnostic is a convenient method that can differentiate between
the various dark energy models. In this article, we analyze the statefinder
parameters in symmetric teleparallel cosmology. The $f(Q)$ gravity theory is an
alternative theory to GR, where gravitational interactions attribute to the
non-metricity scalar $Q$. In the present work, we consider two $f(Q)$ models
which contains a linear and a non-linear form of non-metricity scalar,
specifically, $f(Q)=\alpha Q + \frac{\beta}{Q}$ and $f(Q)=\alpha Q + \beta
Q^2$, where $\alpha$ and $\beta$ are free parameters and then statefinder
parameters $(r,s)$ are evaluated. We plot the trajectory of our models in the
$r-s$ plane. In addition, we analyze the physical behavior of different
cosmological parameters such as density, deceleration, and the EoS parameters.
Further, we use Om diagnostic to differentiate the behavior of both $f(Q)$
models. We found that both $f(Q)$ models predicts that the present universe is
accelerating due to the dark energy component evolving due to non-metricity.
Moreover, model I represents phantom type behavior while model II follows
quintessence scenario.
