The Cybex Gazelle S stroller is compatible with infant car seats by Cybex, Nuna, Maxi Cosi and Clek using the car seat adapters included with stroller purchase.
Looking to use two car seats on the stroller for twins? An additional set of adapters for Cybex, Nuna, Maxi-Cosi and Clek will be sold separately starting in Winter 2020/2021.
The Gazelle S is also compatible with car seats from Britax, Chicco, Graco and Peg-Perego with the purchase of a different set of adapters.
Here is a list of infant car seat brands and models compatible with the Gazelle S.