Both are infant car seats — here are their published manufacturer specs side by side.
This compares published manufacturer specs — not safety or fit advice. The seat's manual, your vehicle's manual, NHTSA's tools and a certified CPST are the fit-and-safety authority; always check them before installing.
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Weight ranges are the manufacturer's published limits across all modes.
How they differ
both list the same documented features for the infant stage — the choice comes down to brand, price and your vehicle's fit (check both manuals)
Published limits
Mode
UPPAbaby MESA V2
Cybex Aton G
Rear-facing
4–35 lb
4–35 lb · 17–32 in
Useful life
7 yrs from manufacture
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UPPAbaby MESA V2: Rear-facing-only infant carrier: for children 4–35 lb and 32″ or less (printed limit).
Cybex Aton G: Rear-facing-only infant carrier: for children 4–35 lb and 17–32″. Useful life is set by the printed "Expires On" date on the seat and base (no printed number of years in the manual).
That is the record of the brand — not a verdict on these models. A recall names specific models and manufacture-date ranges, and a seat missing from the record is not "recall-free": check nhtsa.gov/recalls with the model and date of manufacture on your seat's label. Source: NHTSA, retrieved 2026-09-05.
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FAQ
What's the difference between the UPPAbaby MESA V2 and the Cybex Aton G? The UPPAbaby MESA V2 is FAA-approved for aircraft, lightweight/travel; the Cybex Aton G is FAA-approved for aircraft, lightweight/travel. Both are infant car seats.
Which is right for my car and child, the UPPAbaby MESA V2 or the Cybex Aton G? That depends on your specific vehicle and child — this page compares published manufacturer specs only, not fit or safety. Check the seat manual, your vehicle manual, NHTSA's car-seat finder and ideally a certified CPST before deciding.
Citing these specs? Go ahead — published manufacturer data, last verified 2026-06-11. Copy a ready-made reference: