Symphony DLX

With so many brands, how can you tell if your all-in-one convertible seat is the one? Here, we scrutinize some key infant car seat features and sort through online reviews, leading consumer magazines, and feedback from other moms. We also made a list of best-selling Evenflo convertible child seats, including a short product description for each. Going through the list will help you see what other brands offer so you can sort out your options. In this article, you will also find relevant information and FAQs about this car seat.

Basic Car Seat Specifications

Before we get down to the unique features let’s look at the general specifications. It’s a convertible seat, meaning you can use it facing either the rear or the front. You can even use it as a booster. Keep your kids in these until they can use regular seatbelts. A car seat is a must for kids before they’re ready for a belt-positioning booster. Using an Evenflo car seat as your chosen model unleashes a world of innovation in child safety.

Their lightweight car seats harness the power of intelligent design, integrating a 3-point harness strap system for optimal support and security. Most models are complete with free-flow fabric that allows breathability and comfort for the child. A parent has enough stress to deal with, but a good car seat takes away some of the worry.

A baby sleeping in a Symphony car seat

Symphony DLX Elite All-In-One Car Seat 


Symphony car seat. The Symphony car seat is one of the top models available.
  • Evenflo’s Symphony is a multifunctional car seat designed to make your little one safe and comfortable while traveling.
  • The Symphony car seat can be converted to rear-facing, forward-facing, and booster seating.
  • Unlike most car seats, the Evenflo Symphony has an exclusive, easy-install latch technology that meets government standards and allows easy installation.
  • Evenflo’s Symphony has adjustable straps, making it easy to ensure that your daughter or son fits perfectly in the Symphony with enough wiggle room.
  • Evenflo’s Symphony features cup holders and other handy features.
  • The Symphony can protect your child from the tops of their ears to the tips of their toes.
  • The Symphony All-In-One Car Seat is a favorite of many parents.
Symphony car seat. Many parents love the Symphony seat.

Evenflo DLX Sport All-In-One Car Seat 


Sport All-in-One Car Seat
  • The Symphony Sport car seat is highly recommended for children between 5 and 110 lbs. 5 pounds is the minimum rear-facing weight, and 110 is the maximum booster weight.
  • The Symphony Sport features three modes: rear-facing, forward-facing, and booster.
  • The Symphony Sport also has an adjustable headrest to accommodate your child as they grow. It can also be shared by your oldest child and their younger siblings if they’re close in age.
  • Evenflo’s Symphony Sport child restraint car seat has a dual cup holder for your child’s milk bottle and snacks.
  • Evenflo’s Symphony Sport features include a child restraint headrest, sturdy permitted plastic and metal parts, and comfortable soft cloth padding.
  • The Symphony Sport can be wiped clean with mild soap and water.

EveryStage DLX All-In-One Car Seat 


EveryStage DLX All-in-One Car Seat has superb comfort features
  • The EveryStage DLX has superb comfort features that you may not find on other car seats, including a seat pad that can be machine-washed or air-dried.
  • This child restraint car seat has a custom cradled fit reclining feature that helps minimize head slump and keep the airway open.
  • It is also super easy to install and can be converted in 3 ways, including rear-facing.
EveryStage DLX Seat

Evenflo 4-In-1 Convertible Car Seat 




  • The EveryFit is made in the US and promises 10 years of use. It can be converted into 4 modes and is best for infants from 4 to 120 lbs.
  • It features advanced side impact protection that is known to help reduce crash forces by up to 30%.
  • This car seat’s padding protects the tops of the child’s heads to their bodies.
  • This children’s gear design also has cup holders and easy cleanup because all you do is clean it with mild soap and water.
features an advanced side impact protection

When rear-facing, the car seat can carry up to 40 pounds. Experts recommend keeping your kids in this position as long as the chair can hold them. Evenflo car seats can thus keep your kids safe well past their toddler years. Meanwhile, when forward-facing, the chair accommodates children of a weight of up to 65 pounds. Evenflo can carry kids up to 110 lb and features different modes. How’s that for strength?

A child sitting comfortably in their Symphony car seat

E3 Side Impact Protection

When it comes to impact protection, Evenflo’s All in One Car Seat doesn’t disappoint. Not only will your kids be safe from impact from the front, but they’ll be safe in case of any side impact. The car seat features E3 Side Impact™ Protection. The smart design has a fuller protection zone and offers more energy absorption while in rear-facing mode.

Because most fatal car accidents have a side impact component, you’ll be glad your baby seat has this side impact protection feature to protect from the top of the child’s head to the rest of their body. The brand aims above the Federal Crash Test standard. Structural integrity tested DLX convertible car seat at impact and energy levels twice those standards. Because of this, the E3 Side Impact technology can reduce impact by up to 50 percent.

Infinite Slide Adjustable Harness

Between all the work you put into raising children, we don’t always have a lot of time to spend on adjusting harness straps. Thankfully, the DLX all-in-one car seat has a solution. A slide harness for an accurate fit every time. One of its features is the five-point Infinite Slide adjustable harness. All you have to do is adjust the tightness to secure your child and then witness the crotch buckle easily slide. After that, the harness of the car seat slides if it’s too high or too low for an accurate fit every time.

SureLATCH Technology

There are two variations to this. You have the first standard release, which people also refer to as the LX. The deluxe version goes by two names: the DLX and Elite. The name depends on which area or state you find the car seat. Both the first release and the deluxe versions have the same general specifications. They also have a five-point adjustable harness and advanced e3 side impact protection.

The critical difference is in the connectors. The first uses the Quick Connector LATCH system which allows you to quickly but safely connect the LX to your car seat. It’s so simple that you can do this with one hand. Meanwhile, the DLX All-in-One series car seat uses SureLATCH technology. It makes installation quicker. The brand claims you can connect the car seat to your car in 60 seconds or less. It also has a latch and a sliding harness that tightens automatically when the car seat and child are secured properly.

Other Features

Convertible car seats offer not only safety but also convenience. The car seat has a removable head and a washable (low heat, cold water) seat pad for easy cleaning. That means messes and accidents will be much easier to clean. Additionally, there’s also a cup holder that expands to hold drinks of all sizes. Comfort is also something you can find with the DLX. Its pads are thick enough for your children to stay comfortable on long car rides. It also has a multi-recline feature so your kids can sit upright or lean back to sleep.

Conclusion And Final Thoughts

The harness, designed to be a rethread harness, accommodates data points such as adjusting to the top of the child’s head, ensuring it is at its lowest position while providing maximum protection. The intricacy of this design addition holds value for parents worrying about their newborns’ and toddlers’ safety. Regardless of distance, 5-point harness positioning can keep your baby safe.

Additional features that may help, like built-in cup holders, help parents keep things organized during travel. Notably, three distinct modes make it adaptable and can extend use from birth up to 110 lbs or approximately 28-50 inches tall, ensuring full coverage from infancy through childhood.

It meets all applicable federal safety standards and surpasses its side-impact protection system and adjustable harness. There are also two variations, as well as multiple colorways. Regarding car seats for your kids, the DLX all-in-one convertible car seat is a formidable contender you’ll want to keep on your list.

Top Car Seats For Babies: Frequently Asked Questions

What Is A Convertible Car Seat?

Convertible car seats are made, especially for your child to sit securely in your vehicle while traveling. They create car seats made for newborns up to 10 years of age. As the child grows bigger, you can have the option to adjust the straps of the car seats so they will still fit on your baby. You can also opt for a car seat stroller combo to get the perfect harmony of comfort, safety, and convenience.

What Is The Difference Between LX and DLX?

The main difference between LX and DLX is their connectors. You can find the SureLATCH connectors with the DLX, while the LX has the Quick Connectors Latch. Surelatch connectors are found to be more advanced than Quick Connector Latch. Parents love these leading-edge safety seats, giving them peace of mind. The Shyft DualRide is also a good option.

How Do You Install The All-In-One Car Seat?

Before installing your car seat in your vehicle, read the manual for the correct instructions. You can also look for video tutorials online to ensure that you have installed the all-in-one car seat correctly.

How Do I Convert My Seat To A Booster?

Place the car seat on the vehicle seat where you want your child to sit while traveling. Remove the Sure Latch Connector from one storage clip and push it onto the seat belt to lower anchor connectors. Push downward on the child restraint to set it in place. This turns your car seat into a seat belt-positioning booster and a safe child restraint seat.

How Do I Install A Car Seat Forward-Facing?

First, read the instruction manual to learn what to do during installation. Then, begin by adjusting the seat’s straps by pressing down the latch inside the seat cover. You can then refer to the manual on how to properly place the car seat so it faces forward.

When Can I Turn My Rear Facing Car Seat Forward?

You can turn your car seat forward-facing when your child is at least one year old or weighs 22-65 lbs. The 65 lb weight limit is standard. The high back booster mode of the car seats accommodates children at least four years old and weighs 40-120 lbs. Forward-facing harness and belt-positioning are also key to keeping your baby safe.

Are Evenflo Seats Safe According To Child Safety Seat Technician Standards?

Yes, the car seats are safe according to CPS Tech standards, just like the other brands sold in the market,, because they have passed specific safety tests. Even the 5-point harness is tested for safety. But when we talk about the safety of car seats, what’s more important is that you know the correct installation of the said car seat in your vehicle. When purchasing, make sure you’re not getting old stock.

How Do You Move The Straps On A Car Seat?

Open the seat cover to adjust or move the straps of a car seat. It has 3 or 4 slots, so you can adjust the straps well depending on your child’s comfort. You can also flip the back seat over to adjust the straps further. Once you move the straps, the harness easily slides into place once your child sits.

Are Infant Car Seat Bases Universal?

No, the bases are not universal. There is a specific base for a particular type of car seat, and these car seats cannot be used interchangeably.

How Wide Is The Evenflo DLX?

What Ages Are Car Seats For?

What Is The Weight Limit For Evenflo DLX?

Is Evenflo A Good Brand?

How Long Is A Car Seat Good For?

Last Updated on April 11, 2023 by Jeanne Meets

DISCLAIMER (IMPORTANT): This information (including all text, images, audio, or other formats on is not intended to be a substitute for informed professional advice, diagnosis, endorsement or treatment. You should not take any action or avoid taking action without consulting a qualified professional.   Always seek the advice of your physician or other qualified health provider with any questions about medical conditions. Do not disregard professional medical advice or delay seeking advice or treatment because of something you have read here a

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