
Best All-in-One Car Seats Reviews and Guide 2021
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Last update on 2021-02-25 Source: Amazon Product Advertising API
Best All-in-One Car Seats
Welcome to our best all-in-one car seats reviews and guide.
Whereas infant car seats are designed for children of a specific age range, all-in-one car seats can be adapted to the needs of the child as they grow. This adaptability means that one car seat can last you all the way from infancy to pre-school years.
All-in-one car seats, as the name suggests, are kids’ car seats that can be used forward-facing or rear-facing. They are not quite as adaptable as convertible car seats, but they are usually cheaper.
All-in-one car seats will cost you less overall because you will not have to buy a new product as your child grows. However, there are some disadvantages that all-in-one car seats have, which we discuss further in our all-in-one car seat buyer’s guide at the bottom of this page. If you would like to learn more about the various types of car seats, read Types of Kids Car Seats Explained for Parents.
For this review, we have selected three of the best all-in-one car seats, and then we have taken a closer look at each product. To give you a broader idea of what is available on the market, we have also provided you with a list of ten of the best-selling all-in-one car seats. You will also find an all-in-one car seat buyer’s guide at the bottom of this page.
We hope that you find our best all-in-one car seats reviews and guide helpful. If you do like this page, please don’t forget to share the page on your social media accounts before you go. Thanks!
Header Image: Britax One4Life ClickTight All-in-One Car Seat.
Best All-in-One Car Seats – Quick guide
Below, you will find our quick guide to the three best all-in-one car seats that we have chosen. To read more about each product, scroll down the page, or click the “Read Our Review” button.






Last update on 2021-02-25 Source: Amazon Product Advertising API
Best All-in-One Car Seat Reviews
Next, we take a closer look at each of our chosen best all-in-one car seats. If you would like some guidance on how to select the best car seat for your child, you will find a car seat buyer’s guide at the bottom of this page. You may also be interested in reading our post, Types of Kids Car Seats Explained for Parents.
1. Graco 4Ever DLX 4 in 1 Car Seat
Possibly better described as a convertible car seat, The Graco 4Ever DLX 4 in 1 Car Seat gets our vote for the most versatile of all our picks of the best all-in-one car seat.
The 4Ever DLX 4 in 1 Car Seat will last your child from infancy to the big-kid stage. The seat can be converted into four different configurations: rear-facing with a harness, front-facing with a harness, high-back booster, and a backless booster.
There are some great features on this car seat, including a 6-position recline and a 10-position headrest.
There is also a neat feature that adjusts the harness and headrest together without any need for rethreading. The cover is easy to remove for cleaning too.
The Graco 4Ever DLX 4 in 1 Car Seat gets excellent reviews from customers as well. Any negative reviews appear to be focussed on the seating position for infants, which can be one of the drawbacks of all-in-one car seats. Overall, though, the Graco 4Ever DLX 4 in 1 Car Seat has an impressive 89% 5-star rating from customers.
If you have decided that you want to buy an all-in-one car seat that will last you for ten years, then the Graco 4Ever DLX 4 in 1 Car Seat is one to include on your shortlist.
Graco 4Ever DLX 4 in 1 Car Seat – Summary:
- 4-in-1 car seat gives you 10 years of use: seamlessly transforms from rear-facing harness car seat (4-40 pounds ), to forward-facing harness car seat (22-65 pounds), to highback belt-positioning booster (40-100 pounds ), to backless belt-positioning booster (40-120 pounds )
- Graco ProtectPlus Engineered helps to protect your little one in frontal, side, rear and rollover crashes.
- Simply Safe Adjust Harness System adjusts the height of your harness and headrest to 10 positions in one motion to ensure that your child is always properly secured
- 6-position recline helps keep your growing child comfy on your many journeys together
Last update on 2021-02-25 Source: Amazon Product Advertising API
2. Britax One4Life ClickTight All-in-One Car Seat
The Britax One4Life ClickTight All-in-One Car Seat is an all-in-one car seat that can be used rear-facing for infants and front-facing when your child gets older.
The One4Life ClickTight child seat can be used in four different ways: rear-facing with a harness for infants, front-facing with a harness for toddlers, high-back front-facing with a harness for pre-school years, and front-facing with the car’s seatbelt for older kids.
The Britax One4Life ClickTight All-in-One Car Seat protects kids of all ages.
The seat features high sides to protect the child’s head, a reinforced seat, crumple zones, and a V-shaped tether to keep the set stable in a crash.
The headrest has fifteen positions, so the seat can be adjusted as your child grows, and there are six recline positions. There are also cooling vents built into the sides of the chair to help keep your child cool.
The Britax One4Life ClickTight is another highly rated car seat. The only thing that this seat lacks that the Graco 4Ever DLX 4 has is the backless booster seat. Overall, we rate this product as one of the best all-in-one car seats for quality and convenience.
Britax One4Life ClickTight All-in-One Car Seat – Summary:
- 10 years of use: New one4life convertible to booster car seat grows with your child from 5 to 120 pounds & up to 63 inch tall
- Install confidently: With a ClickTight installation, you'll know it's right in 3 easy steps
- One4life: Converts from rear facing infant car seat, to forward facing 5 point harness, to high back belt positioning booster
- Britax safety: High strength steel frame, crumple zone helps absorb crash energy and patented V-shaped tether
Last update on 2021-02-25 Source: Amazon Product Advertising API
3. Safety 1st Grow and Go 3-in-1 Car Seat
Our next selection for the best all-in-one car seat is the Safety 1st Grow and Go 3-in-1 Car Seat, which is suitable for children weighing from 4 to 500 pounds.
The Safety 1st Grow and Go can be used in three configurations. When used as a rear-facing car seat, the baby seat is suitable infants weighing between 5 and 40 pounds. The seat can be flipped around and used as a forward-facing car seat for kids weighing 22 to 65 pounds. And the Safety 1st Grow and Go 3-in-1 Car Seat can be used as a high-back booster seat for kids weighing 40 to 100 Pounds.
We picked the Safety 1st Grow and Go 3-in-1 Car Seat as the best all-in-one car seat in respect of value for money. At under $150, at the time of writing this review, the 1st Grow and Go 3-in-1 Car Seat costs substantially less than our two selections.
The Safety 1st Grow and Go 3-in-1 Car Seat lacks some of the features of our first two selections, though. The car seat meets the legal requirements, but the more expensive child seats will offer even more safety features than the law requires.
If you are looking for an affordable, no-frills, all-in-one car seat, the Safety 1st Grow and Go 3-in-1 Car Seat will fit the bill nicely.
Safety 1st Grow and Go 3-in-1 Car Seat – Summary:
- Built to grow: The 3 in 1 car seat built to grow for extended use through 3 stages: Rear facing 5 to 40 pounds, forward facing 22 to 65 pounds, and belt positioning booster 40 to 100 pounds
- Side impact protection: The grow and go’s side impact protection helps keep your child safe
- Easy in, easy out: Harness holders keep the harness in an open position so it is easy to get your child in and out of the seat. Rear facing height is 19 to 40 inches. Forward facing height is 29 to 52 inches
- Quickfit harness: With the quickfit harness you can easily adjust both the harness and headrest in one simple step
Last update on 2021-02-25 Source: Amazon Product Advertising API
Best-Selling All-in-One Car Seats
The above are our selections of some of the best all-in-one car seats. But we like to give the full picture. So, below, you will find ten of the best selling all-in-one car seats. All or top-ten lists are updated automatically, so what you see in this list below are the all-in-one car seats that people are buying right now.
- Built to grow: The 3 in 1 car seat built to grow for extended use through 3 stages: Rear facing 5 to 40 pounds, forward facing 22 to 65 pounds, and belt positioning booster 40 to 100 pounds
- Side impact protection: The grow and go’s side impact protection helps keep your child safe
- Easy in, easy out: Harness holders keep the harness in an open position so it is easy to get your child in and out of the seat. Rear facing height is 19 to 40 inches. Forward facing height is 29 to 52 inches
- Quickfit harness: With the quickfit harness you can easily adjust both the harness and headrest in one simple step
- 10 years of use: New one4life convertible to booster car seat grows with your child from 5 to 120 pounds & up to 63 inch tall
- Install confidently: With a ClickTight installation, you'll know it's right in 3 easy steps
- One4life: Converts from rear facing infant car seat, to forward facing 5 point harness, to high back belt positioning booster
- Britax safety: High strength steel frame, crumple zone helps absorb crash energy and patented V-shaped tether
- ROCK-SOLID ALL-IN-ONE CAR SEAT: The Evenflo EveryStage DLX all-in-one reclining car seat features an innovative EasyClick LATCH system that easily ratchets to achieve a tighter installation that creates a wiggle-free seat.
- INFANT + BOOSTER + CONVERTIBLE: This all-in-one baby car seat is a complete 3-in-1 solution. It’s a rear-facing harness, forward-facing harness, and belt-positioning booster that delivers a safe and secure ride for up to a decade.
- CUSTOM CRADLED FIT: Evanflo’s EveryStage baby all-in-one car seat features a proprietary in-seat reclining feature that provides enhanced support by comfortably angling your child to minimize head slump while helping keep his airway open.
- ADJUSTS TO MULTIPLE POSITIONS: Our Evenflo DLX all-in-one car seat features a no-rethread harness, which can easily adjust the harness fit. It also can adjust to multiple positions without having to extend the seat or cramp other passengers.
- The Evenflo Every fit 4-in-1 car seat has been engineered for maximum comfort, safety, and longevity. It accommodates your child by adjusting to multiple positions, allowing kids to ride rear-facing beyond 2 years of age-without extending the seat.
- Safety is a priority: The every fit meets or exceeds all applicable federal safety standards and Evenflo Side Impact standard, with advanced Side Impact protection that reduces crash forces up to 30%. and, Installation is easy!
- Comfort: innovative air flow Mesh fabrics are designed to keep your child cool. Angles your child comfortably to minimize head slump with three rear-facing recline positions and one forward-facing recline position.
- Proper fit: the one-hand, 12-position headrest and easy to slide no-rethread harness straps can adjust as your child grows without uninstalling the car seat.
- Designed to deliver premier child fit and comfort at each unique stage, Fit4 makes it easy to correctly secure your child from birth through big kid booster for ultimate comfort, convenience and peace of mind as your baby grows to age ten.
- 4-Stage FitKit System provides optimal fit and comfort through multi-staged construction and easy-to-remove layers, providing more room to grow through each unique stage
- Easiest all-in-one car seat to install correctly, thanks to Chicco-exclusive installation features including ReclineSure leveling system, RideRight bubble levels, force-multiplying SuperCinch LATCH tightener and LockSure belt-tightening system
- DuoGuard side-impact protection offers 2 layers of protection with a steel-reinforced frame and EPS energy-absorbing foam that surround the head and torso, while a best-in-class 10-position headrest accommodates maximum growth
- Narrow design saves space
- All-in-one car seat offers 3 ways to ride for children 5-100 lbs.: rear-facing, forward-facing harness, and booster car seat
- SecureStopTM Anti-Rebound Bar provides a 45% reduction in rearward movement of the car seat during a frontal collision using the FMVSS 213 crash pulse (anti-rebound bar should be used rear-facing only)
- 10-position adjustable headrest moves together with the harness to accommodate your growing child, no rethreading required
- JOY OF THE JOURNEY: From birth, keep your little one rear-facing longer to 40 lbs., and as they grow to 100 lbs. (10 years approx.) our long-range lifespan protects your child facing-forward.
- THREES NOT A CROWD: For safety that fits 3 across the Radian 3RXT packs all our innovative safety features into a sleek and slim design that allows you to fit three across (in most mid-size vehicles). Now the whole family can travel, together
- LOVINGLY ENGINEERED: The Radian 3RXT is built with automotive-strength steel, engineered into a dual spine, which manages and dissipates energy with an unyielding structure to protect your baby. Our audible click SuperLATCH system makes installation easy.
- BUSINESS CLASS COMFORT: Inspired by the best in European style, our Radian 3RXT has bright soft fabric covers, and a memory foam seat bottom. Lined with energy absorbing foam, comfort and safety go hand in hand
- Buttery Soft and Breathable - Our KeaBabies Nursing Cover features buttery soft, breathable and stretchy premium quality fabric that is specially designed to provide maximum airflow to keep mommy and baby comfortable while being covered.
- No See-Through Fabric - You get maximum privacy while feeling cool and comfortable when nursing. With 360 degree coverage, you never have to worry about your baby pulling or tugging the cover. Breastfeed confidently anywhere.
- #1 Versatile Cover - Stretchy and breathable material is ergonomically designed for multiple-uses. Leave home in a Chic Infinity Scarf and use as a Breastfeeding Cover, Car Seat Canopy, Shopping Cart Covers, Stroller Covers and Pumping Cover when needed!
- Perfect Gift For New Moms - Definitely usable and appreciated by new mothers. Comes with a nice gift box and a pouch for storage. Neutral design and color for chic mothers. Suitable for girls and boys.
- GOES THE DISTANCE: Offers 3 stages for up to 10 years of use (4 to 120 lb) — Infant + Convertible + Booster
- INSTANT PEACE-OF-MIND: SensorSafe alerts you of four potentially unsafe conditions in the car — unexpected unbuckling, unsafe temperature, the child is left unattended, and the child is seated too long
- ROCK-SOLID INSTALLATION: EasyClick easily ratchets to give you a 3x tighter installation than the competition — in less than 60 seconds
- ADJUST ON THE FLY: With one hand, one step, the No Re-Thread harness easily slides up and down, allowing you to adjust the seat with no need to re-install
- 3 Modes in 1 Seat: Accommodates children from 5 - 110 lbs - Rear Facing, Forward-Facing Harness and Belt-Positioning Booster
- 5-point harness tested to a 65 lb weight limit: Allows longer harness use until child is ready for belt-positioning booster
- No Rethread Harness: easy-to-slide harness straps enable proper fit during each ride and as child grows- without uninstalling the car seat
- Adjustable Head Rest: One-hand adjustable head rest grows with your child
Last update on 2021-02-25 Source: Amazon Product Advertising API
All-in-One Car Seat Buyers Guide
All-in-one car seats do offer excellent value for money. You only need to buy one product that will last the child from infancy up until they can sit in the regular car seats. However, there are some drawbacks to this type of baby seat. So, here is our guide on what to consider when buying an all-in-one car seat.
1. Check the Recommended Weights and Heights
The first thing to look at when buying any type of child car seat is the recommended weight and height. You should never use a car seat that is not the right size for your child because that would be dangerous.
When buying an all-in-one car seat, be especially careful to check the lowest weight that is recommended for the product. Some products of this type are not suitable for newborns.
2. Check Your Car
Some all-in-one car seats and convertible car seats are big and bulky. So, check how much space you have in the back of your vehicle to ensure that the car seat will fit. You will also need to check if your car has the LATCH system installed. LATCH stands for Lower Anchors and Tethers for Children, and it is a standardized anchoring system for kids’ car seats. Most modern car seats can be used with either the car seat belts or the LATCH system, but it’s worth checking to be sure.
3. Stroller Compatible Car Seats
One of the disadvantages of all-in-one car seats that they do not usually have a separate base and chair with a handle like infant car seats do. So, unlike an infant car seat, you will not be able to lift the chair out of the car with the baby still in it. And, you will not be able to slot the car seat straight into a compatible stroller.
4. Look at the Seating Position
Consider how comfortable an infant will be sitting in the chair when the product is used as a rear-facing baby seat. Because all-in-one car seats are a single product designed to fit children of all sizes, there can be a trade-off in comfort. You might find that an all-in-one car seat is not as comfortable for a small baby as a purpose-made infant car seat would be.
5. Always Buy New If You Can
It is not recommended that you buy used car seats of any kind. Second-hand car seats may have been misused in the past, and old car seats may not meet the latest safety standards. Also, do not go for the cheapest all-in-one car set you can find. Very cheap car seats will likely not provide the same level of protection of the child as a premium car seat would.
6. Read the Customer Reviews
When you are looking for the best all-in-one car seat for your child, read some of the customer reviews before you make a purchase. The people who are in the best position to give you an opinion of any baby products are parents who used the item day in and day out in real life!
Conclusion
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