Summary: ``Non-linear Sigma models involving $U ( 1 )$ symmetry group are studied using a geometrical formalism. In this type of models, $Q$-balls and $Q$-Kinks solutions are found. The geometrical framework described in this article allows the identification of the necessary conditions on the metric and the potential to guarantee the existence of these $Q$-balls and $Q$-Kinks. Using this procedure, Sigma models where both types of solutions coexist, have been identified. Only the internal rotational frequency distinguishes which one of these defects will arise.''