Nuna Exec vs Britax One4Life: Who Will Take the Crown?

Are you looking for an all-in-one car seat to fit your children's needs? Do you want to save money and choose a model for all ages and stages?

If you do, you don't need to worry - we've got you covered! You don't need to purchase a new car seat for kids' development.

You can pick the best convertible car seats - all-in-one car seats and use them for an extended period, covering your growing children from infancy to school years.

So we reviewed the two most popular models: Nuna EXEC & the Britax One4Life convertible car seats.

And who is the winner? Read below!


Britax One4Life vs Nuna Exec: The Final 2022 Round!

1. Design and specifications

britax one for life vs nuna exec


As previously said, both convertible car seats are all-in-one car seats, suitable for your growing kiddos.

So, they offer four modes of use:

- rear-facing infant car seat - for newborns 5-50 pounds

- extended rear-facing infant car seat - for infants up to two years & 5-50 pounds

- forward-facing mode - for kids 22-65 pounds (2-6 years)

- belt-positioning booster car seat for older kids 40-120 pounds, minimum four years old.

As the NHTSA and the AAP strongly recommend, you should keep your little one in the rear-facing mode as long as possible.

So, both Britax and Nuna convertible seats offer the extended rear-facing infant car seat mode for maximum protection and safety standards.

In addition, the rear-facing mode will provide an additional safety feature in all types of car accidents, so your little ones will have the best protection. It will keep babies stable and fixed.

However, if you don't want these seats, you can always find other car seats for the rear-facing mode, forward-facing, and booster mode separately. But, it will cost you more money.

Regarding their specifications, the Britax One4Life measures ‎20.5 x 19.5 x 25 inches and weighs 30 pounds.

On the other hand, the Nuna EXEC has the following proportions: 22.5 x 18.5 x 26-33 inches and weighs 26.6 pounds.

So, you see, the Nuna EXEC is slightly lighter but still bulky and narrower than the Britax One4Life model.

You want a bulkier car seat in a car accident, believe me! It will reduce the impacts and movements, offering a more stable and fixed car seat position.

But, the Nuna EXEC will also be stable and secure since it's another bulky and robust seat.

So, you can choose according to your preferences. Both car seats offer the same lifespan, ten years after the date of manufacture.

The winner? Both

2. Great safety features

The Britax One4Life convertible car seat will wow you due to its premium safety standards.

Namely, the convertible car seat offers two layers of side-impact protection surrounding your child's head, neck, and torso.

Therefore, it will keep your small and big kids safe and sound in all car seat modes. It's bulky, and all that weight easily transfers to your kid's safety and stability.

In addition, the convertible car seat uses the exclusive SafeCell technology with crumple zone energy-absorbing foam and a reinforced steel frame.

The technology and frame will redirect and collect the impacts, forces, and pressure, keeping your kids intact and stable.

However, the convertible car seat also features a V-shaped tether, helping it slow and reduce movements during a car crash.

Of course, in the rear-facing infant car seats, Britax models come with the anti-rebound bar.

However, you must obtain it separately as an accessory.

On the other hand, the Nuna EXEC utilizes the Aeroflex side-impact protection, steel frame, and the anti-rebound bar (panel) in the rear-facing infant seat.

The panel serves as an anti-rebound bar in case of an accident.

The convertible car seat is also ideal for the EPP energy-absorbing foam, which is more flexible than the regular EPS foam. As a result, it is less likely to snap on external impacts, pressure, and forces.

And the convertible car seat will offer maximum protection in the side, rear, and frontal car crashes.

Moreover, the Nuna EXEC seems more advanced in terms of safety standards due to three layers of the side-impact protection, while the Britax One4Life offers only two.

Other than this, the car seats are pretty much similar.

So, in terms of safety, the Nuna EXEC is the best convertible car seat, and I gladly choose it over Britax.

However, both car seats include the five-point harness system for extra stability and security for your kids if they use rear-facing and forward-facing modes.

Once in the booster mode, they will use seat belts.

The winner? Nuna EXEC

3. Installation process

nuna exec vs britax one4life belly pad

Source: Amazon

To install and use the car seat correctly, you must determine the correct mode first. You can install and use the seats in the following:

- rear-facing seat mode

- forward-facing mode

- booster seat mode.

In addition, you can install both car seats with either the vehicle seat belt or the LATCH system.

However, the seats are similar as both brands recommend you install and use them with the seat belt rather than with LATCH installation to avoid complications.

The Britax One4Life offers the ClickTight installation procedure, providing you with three steps to set it up properly.

It would help if you opened it, thread the vehicle's seat belt through the correct belt path, and closed it to lock the seat.

So, it won't be as challenging as LATCH, especially if you're a newbie, and install the seat in the rear-facing or straight front-facing mode.

But, you must check the vehicle and car seat instruction manuals to find the best fit for your little ones.

The same goes with the Nuna EXEC car seat. It also offers the best vehicle seat belt and LATCH configurations.

Experts recommend you use the seat belt rather than the LATCH to avoid complications and delays.

Both car seats use the True Tension doors to remove extra slack and ensure struggle-free uses.

Thanks to the reinforced belt paths, the seats will have an extra layer of security during the installation.

So, in terms of installation, the result is a tie - it only depends on what you prefer more. But, both seats will be convenient for effortless setup methods.

But, if you want a three-step installation, you should choose Britax.

The winner? Britax One4Life

4. Comfort benefits

The Britax car seat offers nine recline options, while Nuna offers only four.

In addition, both seats offer no-rethread harness systems so that you can adjust the harness height for the bigger kids with a higher weight limit.

The Britax model utilizes fifteen positions of the quick-adjust headrest and harness, ensuring maximum comfort while your little one grows.

On the other hand, Nuna also offers the 12-position no-rethread harness to follow your children's height and weight limits when using the seat.

To use and adjust the harness, you must press the chest clip and loosen or tighten the harness straps to meet your kid's needs.

Both car seats use the quick push-button recline to give you a proper angle and a better fit in your vehicle when choosing the right car seat mode.

Concerning materials, Nuna beats Britax since it offers all-natural wool materials without added fire retardant chemicals.

It ensures high-quality fabric and a durable design for the most comfortable seat.

However, Britax utilizes the built-in ventilated mesh and cooling channels to keep your kids optimal, calm, relaxed, and cool in the car seat.

Nuna also provides cooling shoulder belt pads when in a booster seat to ensure effortless and straight forward-facing uses.

So, I'll leave it to you to select the final winner. But remember that Britax offers more harness and head-rest adjusting positions than Nuna.

The winner? Both

5. Convenience features

nuna exec vs britax one4life booster

Source: YouTube

Both car seats are user-friendly, convenient, and easy to use and install. In addition, both offer a machine-washable cover to ensure the best maintenance and cleaning process.

Unlike other seats, they won't lose any quality benefits, and you can use them subsequently and more robustly.

Still, the crucial part of every long-distance trip is cup holders. Both car seats have two cup holders for your kid's beverages and snacks.

You can easily wash and clean the cup holders once they get dirty. The cup holders are dishwasher-safe and easy to clean and maintain as well.

However, when you fold and remove the Nuna cup holders, you will create more space to fit three car seats across in the vehicle's back.

The Britax One4Life might not be that flexible due to its higher weight limit and overall seat weight. But, Nuna undoubtedly fits three car seats, regardless of the weight limit.

The winner? Nuna EXEC

5. FAA approval

The FAA-approved seats always have a label stating that you can use them in motor vehicles and aircraft.

Those stickers are always located at the back of the car seat.

As you can find, both Britax and Nuna seats have labels. They are FAA-approved for the use of aircraft.

However, you can only use them in the harness mode. You won't be able to use the seats as the boosters, regardless of their specifications and weight limits.

There is no such thing as an airplane booster seat, so you will have to strictly use the seat's rear and forward-facing with a harness.

However, you can always contact your airline to find all details regarding the car seat use on the airplane. They may or may not accept the seat, so check the regulations first.

Otherwise, you may not pass the checking control at the airports. So, do a little research in advance.

The winner? Draw

6. Price tags

nuna exec vs britax one4life auto


Now, this is a bit tricky. Why?

Well, the Britax One4Life has a way lower price than the Nuna EXEC. For example, the Britax model costs around $400, while the Nuna model has a higher-end price of a remarkable $700!

Now, if you're on a tight budget, you can choose Britax - it offers similar benefits as Nuna, except for advanced safety.

On the other hand, if you can and want to spend your money on a premium-quality car seat, you should definitely obtain the Nuna EXEC car seat.

Of course, I'm not saying that Britax isn't good - quite the contrary! However, it's one of the best all-in-one seats on the market, and many parents find all the bells and whistles!

But, as the Nuna EXEC offers slightly advanced safety benefits, it is more expensive. So, I'll leave it to you - choose according to your possibilities.

The winner? Britax One4Life

Are There Alternatives?

You can pick multiple convertible seats in both brands for parents who don't want all-in-one seats yet need those accommodating bigger children.

The most prominent models are the Nuna RAVA seat and the Britax Boulevard seat. You can find them on Amazon and compare them.

On the other hand, we have already compared the Britax Boulevard with similar car seat models and Nuna RAVA with the One4Life model.

So, you can also refer to our articles and find specifications and the best usage of these seats.

However, the main difference between the Britax Boulevard and Nuna RAVA and our main models is that the Nuna RAVA and Britax Boulevard are not boosters!

Our prominent EXEC and One4Life models are all-in-one seats, whereas the Britax Boulevard and Nuna RAVA are only two-in-one seats for infants, toddlers, and preschoolers.

So, the EXEC and One4Life are the next-generation, 4-in-1 seats.

But, if you need only two-in-one seats, you can freely choose the Britax Boulevard or the Nuna RAVA.

However, the Nuna RAVA comes with a higher price tag than the Britax Boulevard, so pay attention to your budget.

The Nuna EXEC: Pros & Cons

  • Fitting three across
  • Comfortable
  • High-quality fabrics
  • Maximum safety standards with three layers of SIP
  • Quick setup with two methods
  • Ten years of lifespan
  • Growing with the users
  • User-friendly
  • Machine-washable content
  • Anti-rebound bar included in the form of panels
  • Higher price point
  • Too bulky, although it’s lighter than Britax
  • The harness is wipe-clean only

The Britax One4Life: Pros & Cons

  • Premium-quality materials
  • More recline positions and more harness adjustments than Nuna
  • User-friendly
  • Effortless installation with both methods
  • Ten years of lifespan
  • Premium comfort benefits
  • Easy to use
  • Quick maintenance and cleaning
  • Advanced safety benefits
  • Grows with your child
  • More affordable than Nuna
  • Not including the anti-rebound bar
  • Too robust for quick adjustments between vehicles
  • Only two layers of SIP compared to Nuna


nuna exec vs britax one4life black friday

Source: YouTube

Well, it's hard to tell. Both seats are pretty much similar in all factors.

However, the Nuna EXEC provides three SIP layers, whereas the Britax model includes only two. And you want more SIP layers on the road.

So, in terms of safety, it beats Britax. However, it also fits three across, which might be challenging with Britax.

How long is Britax One4Life suitable for?

The Britax One4Life is the same as Nuna at this point. Both seats come with ten years of lifespan from the date of manufacture.

Who is the Britax One4Life ClickTight all-in-one car seat for?

It's for all children. When we say all, we literally mean all.

The car seat offers four using methods:

- rear-facing for newborns between five and 50 pounds

- extended rear-facing for toddlers five to 50 pounds

- a forward-facing way for kids 22-65 pounds

- booster mode for older kids 40-120 pounds.

So, you can use the seat for all ages and stages, from infancy to preschool and school.

And please, refer to our design and specifications section to find more info about the seat's configurations.

What kind of safety features does this Britax One4Life ClickTight convertible seat come with? It comes with premium safety standards.

The seat includes two layers of SIP, a reinforced steel frame, a V-shaped tether, and the energy-absorbing foam with the SafeCell crumple zone technology.

The SIP offers advanced foam to absorb and redirect the external forces, impacts, and pressure in all car accidents. The SafeCell composition helps at this point.

The frame and shell provide increased stability and security in the back of the vehicle, making it less possible to move around. In addition, they will keep your little one optimal and intact in the crash.

Finally, the V-shaped tether will reduce and slow the movement in all crash types and keep your child and seat more stable and safer on the road. So, it offers exceptional safety standards.

Is Britax One4Life safer than Nuna Exec?

They are somewhat similar. However, the Britax car seat is not as safe as the Nuna model.

The main reason is that the Britax model uses two layers of SIP, while the Nuna car seat utilizes three layers of SIP.

So, it will show advanced safety standards compared to the Britax seat.

Britax One4Life vs Nuna EXEC: What's the Best Car Seat?

My dear parents, this is the end of our road trip with these two seat models. Are you ready to pick your best solution?

If you still need time to think, go slowly, and examine every detail before the final purchase.

Both seats are more-less the same, except that the Nuna EXEC has slightly advanced safety standards with three SIP layers.

Consider all pros and cons and pick the best solution for your tiny or more enormous baby.

I look forward to hearing from you!

Avatar of Kathy Warner

Kathy Warner

Kathy is a busy mother of two and a CPS technician for more than eight years. Her mission is to awaken parents to the importance of child passenger safety and show them the right practice. You can read more about her here

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