The lightest infant car seats on the market are the Nuna PIPA Lite, Nuna PIPA Lite R, and Nuna PIPA Lite LX. The Nuna PIPA Lite car seats are made with a proprietary lightweight foam not seen in any other car seats, which helps to make them 2.6 pounds lighter than the original Nuna PIPA and the PIPA RX.
Also adding to the weight savings: The PIPA Lite versions do not have seatbelt paths for installing the car seat without the base. Therefore, the PIPA Lite, Lite R, and Lite LX must be used with the base at all times, which may impact your decision if you travel or take taxis frequently.
See the differences between the Nuna PIPA, PIPA RX, PIPA Lite, PIPA Lite R, and PIPA Lite LX in this comparison.
One note: Nuna advertises a 5.3-pound weight for the Nuna PIPA Lite, which does not include the canopy or infant insert, which most new parents will use. With those accessories, the car seat weighs 6.7 pounds—still lighter than any other car seat. Most infant car seats weigh 9 to 11 pounds.
Looking for a car seat for an older child? The lightest toddler car seat is the WAYB Pico, which weighs just 8 pounds and is foldable for travel. The WAYB Pico can be used only forward-facing and is recommended for children age 2 and older.
The car seats below are ranked by weight. Weights include infant inserts and do not include the car seat base.
Shop Strolleria's collection of infant car seats below!