A Comparison of the Graco SlimFit3 LX and the Graco SlimFit Original Model

SlimFit3 LX vs. SlimFit All-in-One: Similarities and Differences

If you’re at all familiar with Graco, you know they love to have confusing, similar carseat names. They get you started with their SnugRide line (at least 16 models as of this writing), then throw you into their all-in-one models when your kid outgrows the infant seat. Well, we’ve got you covered, because we’re here to keep track of them all!

Both SlimFit carseats are all-in-one carseats and have the same basic weight and height limits:

  • Rear-facing: 5-40 lbs. AND child’s head is 1” below height adjustment handle
  • Forward-facing: 22-65 lbs., 49” or less
  • Highback booster: 40-100 lbs., 43-57”, at least 4 years old

The SlimFit3 LX is one of the narrowest all-in-one carseats on the market, which is great if you’re looking for a carseat that will help you get 3 carseats across your back seat (we call this a 3-across). The cup holders are optional and mount on the front of the carseat so if the middle space is super tight, that carseat can use the cup holders on the outside seats, for example.

The OG SlimFit is a little wider, but still narrower than the average carseat. It’s easy to install, but doesn’t have any lockoffs to help keep the seat belt locked. The new SlimFit3 LX has a lockoff in the forward-facing belt path only.

How can you tell the difference between the two carseats if you’re looking at them and are getting confused? Your first visual cue is that the SlimFit3 LX has gray headrest and recline adjuster handles while the OG SlimFit has red headrest and recline adjuster handles. Also, look at those cup holders: the SlimFit3 LX has the cup holders out front while the OG SlimFit has them further back on the armrests and they rotate open/closed.

The new SlimFit3 LX is also more expensive at MSRP $279.99 while the OG SlimFit MSRP is $219.99. Yeah, there’s that too. And both have the nice push-on LATCH connectors. Ahhh.

What about the True3Fit LX? It’s the exact same seat as the SlimFit3 LX, but you know, Walmart had to claim its own seat. Whatever. All retailers do that.

Will you really be able to get a 3-across with either the SlimFit3 LX/True3Fit LX or the OG SlimFit? It truly depends on your back seat and the configuration of the carseats. We trialed some in our review of the SlimFit3 LX, but things like side bolsters or center humps, or placement of seat belt anchors can make or break a 3-across. All I can say is Good Luck!

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