Evenflo is a widely known car seat brand that specializes in making car seats that are extremely safe and easy to use, and in this article we’re going to look at two of their most popular models: the Evenflo Symphony LX vs DLX.
Both the Symphony LX and the Symphony DLX are all-in-one car seats that are equipped with the same enhanced features with one key feature that sets them apart. The Symphony LX is equipped with the Quick Connect LATCH System, while the Symphony DLX comes with SureLATCH Connectors with a built-in auto-retractor.
In this article, I'll provide a detailed review comparing the specs and features of the Symphony LX and Symphony DLX. In addition to that, I'll also break down what makes each of these car seats unique, and afterward, I'll provide my pick for the model that I believe will serve you best.
Evenflo Symphony LX vs Evenflo Symphony DLX Specifications Compared
Header | Evenflo symphony lx | evenflo symphony dlx |
|---|---|---|
Cell | 
| 
|
NHTSA Overall Ease of Use Rating (RF, FF, B): | N/A | N/A |
3 Layer of E3 Side Impact Protection: | reduces the side impact crash force by 50% | reduces the side impact crash force by 50% |
Steell, Reinforced Frame | Yes | Yes |
Weight: | 23 pounds | 21 pounds |
Width: | 21.8 inches | 21.5 inches |
5-Point Infinite Slide Harness | no re-thread harness | no re-thread harness |
Machine-Washable Car Seat Pad | Yes | Yes |
Child Height Limit (RF): | 19 to 40 inches | 19 to 40 inches |
Child Height Limit (FF): | 28 to 50 inches | 28 to 50 inches |
Child Height Limit (B): | 44 to 57 inches | 44 to 57 inches |
Child Weight Limit (RF): | 5 to 40 pounds | 5 to 40 pounds |
Child Weight Limit (FF): | 22 to 65 pounds | 22 to 65 pounds |
Child Weight Limit (B): | 40 to 110 pounds | 40 to 110 pounds |
Quick Connector LATCH System: | safely attaches and detatches to car w/ one hand | auto-retracts for easier installation |
Compatible w/ Seatbealt Installation | Yes | Yes |
Energy-Absorbing Foam Liner: | w/ buckle pads | w/ buckle pockets |
Removeable Head and Body Pillow: | for added comfort and support | for added comfort and support |
Cell |
Major Similarities Between Evenflo Symphony LX vs Evenflo Symphony DLX
The Evenflo Symphony LX and Symphony DLX are pretty similar to one another, and they’re even equipped with most of the same features. For starters, both the Symphony LX and DLX are all-in-one car seats that can be used from birth until your child outgrows the need for a car seat. They have a high weight limit of 110 pounds, so they’re both the only car seats you’ll ever need.
In addition to that, the Symphony LX and the Symphony DLX are equipped with three layers of superior e3 side impact protection that’s been rigorously crash tested at levels that are 2X the federal standard. They also come with a 5-point Infinite Slide Harness that can be easily adjusted with the push of a button, meaning it doesn’t need to be re-threaded.
As for comfort and convenience, the Symphony LX and Symphony DLX have dual built-in cup holders so that your child can keep their drinks close. Also, for added comfort and support, both of these models are equipped with a removable head and body pillow that provides an extra cushion to help your child feel snug and comfortable every time they ride in the car.
Major Differences Between Evenflo Symphony LX vs Evenflo Symphony DLX
The only notable difference that lies between the Symphony LX and Symphony DLX is their LATCH systems. The Symphony LX utilizes the Quick Connect LATCH System that makes it so easy to install the car seat that you can do so with one hand. Conversely, the Symphony DLX is equipped with the patented SureLATCH Connectors that come with a built-in retractor. These connectors make it easier to install your car seat, and unlike the Quick Connect LATCH System, you don’t have to manually tighten the strap to ensure that the car seat is installed securely. You simply push the car seat into the vehicle seat until you hear the audible indicator that lets you know that the car seat is tightened
The Evenflo Symphony LX is an all-in-one car seat with rear-facing, forward-facing, and booster capabilities. With a high weight limit of 110 pounds, you’ll be able to safely use the Symphony LX from the moment you leave the hospital until your child outgrows the need for a car seat. The Symphony LX uses the Quick Connect LATCH System to make it easier and quicker to install/uninstall your car seat. It’s so easy that you can quickly install your car seat using one hand! It’s also equipped with a 5-point Infinite Slide Harness that can be easily adjusted without uninstalling the car seat and re-threading the harness. You push the button, slide the harness to the desired position, and that’s it!
To maximize safety, the Symphony LX comes with 3 layers of e3 side impact protection. It offers expanded zone protection and can reduce the side-impact crash forces by 50%. To ensure it’s safety, the Symphony LX has undergone extensive crash testing with levels that are 2X the federal standard.
Other features include:
Pros
Cons
The Bottom Line
The Symphony LX is an inexpensive yet high-quality all-in-one car seat that’s designed to provide your child with superior protection and drastically enhance safety and comfort. What makes the Symphony LX stand apart from the rest is the Quick Connect LATCH System that makes it easier to install/uninstall the car seat using one hand. It’s a car seat that will ensure a comfortable and secure ride for your little one, and it has an 8-year lifespan, so it’s made to be the only car seat you’ll ever need. It’s durable, reliable, and very easy to use.
The Symphony DLX is another all-in-one car seat that can be used as a forward-facing, rear-facing, and booster seat. It has a maximum weight limit of 110 pounds, so your child can use it until they outgrow the need for a car seat. The Symphony DLX comes with a 5-point Infinite Slide Harness that can be easily adjusted to provide a more comfortable fit as your child grows. And, what’s great about the harness is that it doesn’t need to be re-threaded, and it’s designed so that your child can ride with a harness longer before they transition to a belt-positioning booster.
Additionally, the Symphony DLX is equipped with SureLATCH Connectors that make it easier to install and tighten your car seat. These connectors come with a built-in auto-retractor so that you don’t have to manually tighten the car seat. When the car seat is installed and secured, you’ll hear an audible click letting you know that you’ve installed the car seat correctly. The Symphony DLX is also outfitted with three layers of superior e3 side impact protection that’s been extensively crash tested to guarantee its safety and reliability.
Other features include:
Pros
Cons
The Bottom Line
The Symphony DLX is a high-quality all-in-one car seat that’s kind of like an improved version of the Symphony LX. I say improved because it’s equipped with SureLATCH Connectors instead of the Quick Connect LATCH System, which is what makes it stand out. The SureLATCH Connectors are an upgrade from the Quick Connect LATCH System because it eliminates the need to manually tighten the car seat. The SureLATCH Connectors come with an auto-retractor that provides an audible indicator to let you know that your car seat is installed securely. So, it’s easier to install, and it too comes with a long-lasting 8-year lifespan.
Conclusion
The Symphony LX and Symphony DLX are top-rated all-in-one car seats that will ensure that your child has the safest and most comfortable riding experience. They're very similar devices with a key difference that makes the Symphony DLX my recommendation out of these two models. With the SureLATCH COnnectors, it seems like the Symphony DLX would be easier to use and more convenient, especially if you have to install/uninstall your car seat a lot.
With two kids of my own, I’m passionate about child safety! I’m a research nerd who’s on a mission to make the world a safer place for kids – starting with car seats!
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