2024 Recommended Car Seats for Preemies & Multiples

Best Carseats for Fitting Preemies & Low Birthweight Newborns

Everyone understands that low birthweight babies often come with challenges. However, most expecting parents don’t consider the possibility that the carseat they bought, or received from their baby registry, might not fit baby well if she or he arrives early or is smaller than average at birth.

Of course, you often have no idea ahead of time that you’re going to have a preemie or smaller-than-average term baby. But if you’re expecting multiples, have a history of preterm labor or just a history of delivering small babies then you really want to be prepared with a carseat that is likely to fit the baby/babies well – regardless of whether they’re 4 lbs. or 9 lbs. at discharge.

There are a few important factors when choosing a carseat that is likely to fit a smaller baby well.

• Minimum weight rating. Some seats are rated from 5 lbs. up. Ideally, you want a carseat with a minimum weight rating of 4 lbs.

• You’re also going to need either lower-than-average bottom harness slots (ideally 6″ or lower), OR a seat that comes with a lower body insert cushion that goes under baby’s bottom, boosting them up a little bit so that their shoulder level is even with the bottom harness slots.

To clarify, in a rear-facing carseat, you want the harness straps to be situated “at” or slightly below the child’s shoulder level.

In order to evaluate this properly, you may want to remove the harness strap covers if your seat came with them. In my review photos, I almost always ditch the harness strap covers because, in my opinion, they just tend to get in the way more than anything else when you have a small baby.

Speaking of getting in the way, I want to take this opportunity to educate you on the plethora of aftermarket carseat stuff that lines the shelves of every store with a baby department. With the exception of a blanket to put over baby in cooler weather, you only want to use the things that came in the box with your seat, or items made by your carseat manufacturer that are specifically approved for use with your carseat.

Aftermarket products may look helpful or useful but they can be a real detriment to proper usage so they are not recommended. Products like the Bundle Me are great for the stroller but should never be used with your carseat. Ditto for aftermarket harness strap covers and aftermarket infant head support cushions.

Since you probably don’t have a preemie doll at home to test your carseat with – you can rely on us to steer you in the right direction when it comes to carseats for smaller babies.

All of the seats on this recommended list have been tested by us using the preemie doll made by Huggable Images and we’re confident that these seats will provide a snug and proper harness fit for the vast majority of babies who measure at least 4 lbs. and 17″ (the size and weight of this particular doll).

2024 List of Recommended Carseats for Preemies & Multiples

Priced under $130:

Evenflo LiteMax 35:  3-35 lbs.; 17″-32″ tall; 4 sets of harness slots, 3 buckle positions, option to shorten the crotch strap length for newborns under 8 lbs.; 4-position adjustable base; energy-absorbing EPS foam. With physician approval, LiteMax seats can be used for infants weighing as little as 3 lbs. and as short as 15.75″ tall. Evenflo infant car seats can only be paired with Evenflo strollers including Evenflo Pivot, Evenflo Pivot Xpand Single-to-Double Modular Stroller, Victory Jogging Stroller & Otto Self-Folding Lightweight Travel Stroller.

Safety 1st onBoard 35 LT: 4-35 lbs.; up to 32″ tall; 4 sets of harness slots, 3 crotch strap/buckle positions, option to shorten the crotch strap length for small newborns; 2-position adjustable base; energy-absorbing EPS foam. Available as part of Safety 1st Smooth Ride Travel System.

Evenflo Nuture Max:  4-22 lbs.; 17″-29″ tall; 4 sets of harness slots, 3 buckle positions, option to shorten the crotch strap length for small newborns.; non-adjustable base. Use a rolled up towel or pool noodle to level the base, if necessary. This is a very basic seat that does not come with any inserts. It is NOT compatible with any stroller, not even with strollers made by Evenflo.

Priced $130 – $175:

Graco SnugRide SnugLock 35: 4-35 lbs.; up to 32″ tall; 4 sets of harness slots, 2 buckle positions; 4-position adjustable SnugLock base (SnugLock is a tensioning lockoff); energy-absorbing EPS foam. Compatible with any single or double Graco stroller that accepts a car seat. Graco car seat adapters available for many other premium stroller brands. You have lots of choices!

Evenflo LiteMax DLX (with load leg): 3-35 lbs.; 17″-32″ tall; 5-position no-rethread harness, 3 buckle positions; option to shorten the crotch strap length for newborns under 8 lbs.; 4-position adjustable base with load leg & tensioning lockoff; energy-absorbing EPS foam, push-on LATCH connectors. With physician approval, LiteMax DLX can be used for infants weighing as little as 3 lbs. and as short as 15.75″ tall. Evenflo infant car seats be only be paired with Evenflo strollers including Pivot Xpand Single-to-Double Modular Stroller, Victory Jogging Stroller & Otto Self-Folding Lightweight Travel Stroller.

Priced $175-$225 (MSRP):

Chicco KeyFit 30 ClearTex: 4-30 lbs.; up to 30″ tall; 3 sets of harness slots; single buckle position; adjustable base; built-in lockoffs for seatbelt installations; unique “center-pull” LATCH tightening adjustment; premium push-on LATCH connectors; ClearTex fabric is free of flame-retardant chemicals; EPS foam; newborn insert (4-11 lbs. only).  KeyFit 30 Review Here. Compatible with any single or double Chicco stroller that accepts a car seat. Chicco car seat adapters available for many other premium stroller brands. You have lots of choices!

Graco SnugRide SnugLock 35 Elite: 4-35 lbs.; up to 32″ tall; no-rethread harness with 15 height positions; 2 buckle positions; premium SnugLock DLX base which also acts as a lockoff for seatbelt installations; premium push-on LATCH connectors; EPS foam;  lower body positioning insert. See our complete SnugRide SnugLock DLX Review Here. Compatible with any single or double Graco stroller that accepts a car seat. Graco car seat adapters available for many other premium stroller brands. You have lots of choices!

Priced $225-$300 (MSRP):

Britax Willow S with Alpine Base:  4-30 lbs.; up to 32″ tall; 4 sets of harness slots; 3 buckle positions; ClickTight tensioning lockoff installation system; anti-rebound bar, premium push-on LATCH connectors; “SafeWash” fabrics are free of chemical flame-retardants and can also be machine washed; EPS foam, newborn insert. Britax Willow S Review Here. Compatible with any single or double Britax stroller that accepts a car seat. Britax car seat adapters available for many other premium stroller brands. You have lots of choices!

Chicco KeyFit 35: 4-35 lbs.; up to 32″ tall; no-rethread harness with 7 height positions; 2 crotch strap/buckle positions; adjustable base with anti-rebound bar; lockoffs for seatbelt installations; push-on lower LATCH connectors; energy-absorbing EPS foam; newborn insert. Complete KeyFit 35 Review Here. Compatible with any single or double Chicco stroller that accepts a car seat. Chicco car seat adapters available for many other premium stroller brands. You have lots of choices!

Graco SnugRide SnugFit 35 DLX/Elite: 4-35 lbs.; up to 32″ tall; no-rethread harness; 2 buckle positions; SnugLock base with anti-rebound bar (SnugLock is a tensioning lockoff); premium push-on LATCH connectors; EPS foam;  lower body positioning insert. Some models come with cold-weather boot. Compatible with any single or double Graco stroller that accepts a car seat. Graco car seat adapters available for many other premium stroller brands. You have lots of choices!