Maximum child weight for infant car seats

What is the maximum child weight allowed in these infant car seats?

Cybex Cloud T SensorSafe: The seat is intended for babies from 4 to 30 lbs, and Cybex says once a child exceeds the size limits the seat must no longer be used. CYBEX Cloud T Comfort Extend Infant Car Seat with SensorSafe: Maker lists child height max 32 inches and child weight 4 to 30 lbs. Cybex Cloud T: Rear-facing infant seat approved for use until the baby is 30 lbs or 32 inches long. Cybex Aton G2: The seat is rated for use from birth up to 30 lbs. Chicco KeyFit 30: The seat is designed for infants from 4 to 30 pounds and up to 30 inches tall.

ProductWhyWeight limitHeight limitAge rangeWarranty
1. Cybex Cloud T SensorSafe sold by albeebaby.comThe seat is intended for babies from 4 to 30 lbs, and Cybex says once a child exceeds the size limits the seat must no longer be used.The seat is intended for babies from 4 to 30 lbs, and Cybex says once a child exceeds the size limits the seat must no longer be used. listingCybex's infant car seat category, which the Cloud T belongs to, is for 4 to 30 lbs, up to 32 inches and about 0 to 18 months. guideCybex's infant car seat category, which the Cloud T belongs to, is for 4 to 30 lbs, up to 32 inches and about 0 to 18 months. guideThe seat carries a 2-year warranty. listing
2. CYBEX Cloud T Comfort Extend Infant Car Seat with SensorSafe sold by strolleria.comMaker lists child height max 32 inches and child weight 4 to 30 lbs.Maker lists child height max 32 inches and child weight 4 to 30 lbs. guideMaker lists child height max 32 inches and child weight 4 to 30 lbs. guideMaker lists age range from newborn up to about 18 months. guideWarranty period is 2 years. guide
3. Cybex Cloud T sold by albeebaby.comRear-facing infant seat approved for use until the baby is 30 lbs or 32 inches long.Suitable for babies from 4 to 30 lbs. listingThe maker's infant car seats are rated from 4 to 30 lbs, up to 32 inches and from birth to about 18 months. guideThe maker describes the Cloud T as covering from day one to 18 months with near-flat recline, all-round ventilation, Linear Side-impact Protection and SensorSafe alerts. guide-
4. Cybex Aton G2 sold by albeebaby.comThe seat is rated for use from birth up to 30 lbs.The seat is rated for use from birth up to 30 lbs. listingThe maximum child height is 32 in. guideThe seat is intended for newborns up to about 18 months. guide-
5. Chicco KeyFit 30 sold by albeebaby.comThe seat is designed for infants from 4 to 30 pounds and up to 30 inches tall.The seat is designed for infants from 4 to 30 pounds and up to 30 inches tall. listingThe seat is designed for infants from 4 to 30 pounds and up to 30 inches tall. listing--

Also cited in the text

Every value in the table is a fact RoboTrunk checked, linked to the page it came from. A dash means no checked fact fills that cell. Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live.

Written 2026-10-13T15:29:56.793Z.

This page is published by RoboTrunk, a store built for shopping agents.

The store named on this page sells the product and ships it. RoboTrunk is not
the seller and never holds the money.

Buying works in one path. RoboTrunk's tools prepare a checkout at that store,
then hand back a short-lived link. The person approves the total; once RoboTrunk
has checked the store's total against it, the person is given the checkout link to
tap in their own browser, or, if the person prefers and gives permission, their
agent may open the link and finish there, and payment always happens on the
store's own checkout page. RoboTrunk never takes the payment or sees a card.

Where the rest of this site is:

- /agent/story.md is what RoboTrunk is and how it works, in full.
- /agent/tools.json is every tool, its arguments and its answers.
- /agent/merchants is every store you can buy from through RoboTrunk.
- /products/ucp is every store's indexed products.
- /products/search is one search across every store, in plain words.