When purchasing additional infant car seat bases separately for other vehicles, you can choose from either the PIPA or RELX base for your Nuna PIPA car seat, no matter which base was included in the box originally with your car seat - each base is compatible with all five versions of the PIPA car seat!
Here is a video comparing the Nuna PIPA, PIPA RX, PIPA Lite, PIPA Lite R, and PIPA Lite LX:
Unlike the Nuna PIPA series of infant car seats, the Nuna RAVA and EXEC, which are convertible and "all-in-one" options respectively, do not come with a detachable base. Instead, since these car seats are much heavier, they will be permanently attached to their base and stay in the car most of the time. We compare the EXEC and RAVA in this blog post.
Similarly, the AACE high-back to backless Booster car seat does not use a separate base - it can be installed with or without the included rigid LATCH connectors attached to help with proper seat belt positioning as your child grows up!
Shop the Nuna car seat collection below: