Which car seats are compatible with the G5 System Adapter? September 27, 2022 15:38 Updated Our G5 System Adapter is compatible with Maxi-Cosi, Cybex, BeSafe, and Nuna car seats. Related articles How do I know if my current Orbit Baby product(s) are compatible with older or newer Orbit Baby products? Can I use the G5 System Adapter without a Stroller? Where do I purchase a replacement part for my discontinued Orbit Baby (G1,G2, O2, G3)? Can the Orbit Baby Toddler Car Seat be used on airplanes? What are the size requirements for children using the Stroller Seat?