Nuna's best-selling collection of infant car seats includes six models: the Nuna PIPA, PIPA RX, PIPA Lite, PIPA Lite R, PIPA Lite LX and PIPA Lite RX.

Choosing a Nuna PIPA model involves choosing both a seat and a base. 

Nuna offers two types of bases: the original PIPA base (as seen on the PIPA, PIPA Lite and PIPA Lite LX) and the newer RELX base (which comes with the PIPA RX, PIPA Lite R and PIPA Lite RX). The RELX base solves common installation problems while offering four recline positions to add comfort for your baby.

The four PIPA Lite models are the lightest car seats in the world, while the PIPA and PIPA RX models are also lightweight at 8 pounds.

Weight differences aside, the major difference between the two types of seats is that the PIPA versions can be installed with only a seatbelt for travel, while most of the PIPA Lite versions require a base at all times. The only exception is Nuna's newest car seat launched in 2021, the PIPA Lite RX, which is the only Lite seat that offers a seatbelt-only installation.

See this post for an in-depth look at the differences between Nuna PIPA models.

All Nuna infant car seats can be used with strollers from Nuna and several other brands. See the strollers compatible with the Nuna PIPA series here.

Shop all Nuna PIPA car seats and bases below!