Many people are already familiar with Britax. It is a renowned brand in the market of baby strollers and car seats. Perhaps you’ve had a good experience with a Britax product, or someone has suggested you to choose a Britax model because of the trustworthy quality, so that you are now looking for the best Britax convertible car seat.

No problem! In this article, we have gathered six of the best Britax convertible models that you can put into your consideration. Continue reading below to learn more about:
• The best Britax convertible car seats currently available
• The design and features of each model
• The suitable uses and height/weight limits of each model
• The safety and build quality of each model
• The distinctive advantages of each model
• The potential disadvantages of each model, if any

1. Britax Advocate ClickTight
Britax Advocate ClickTight currently offers the highest level of side impact protection among all Britax convertibles, and it is also equipped with impressive features, so it is definitely one of the very best Britax convertible car seat models right now. This model is incredibly easy and simple to use while offering enhanced safety.

This model comes with the company’s patented ClickTight installation system, which works with the vehicle’s seatbelt. It is very quick and practical to use. You just need to buckle the seatbelt on the right position, and you can easily achieve the proper level of tightness. The installation is very solid and secure. Although this model also has the LATCH connectors, most people should just use the ClickTight installation system because it is so much easier to use and more reliable.

Britax Advocate ClickTight comes with a quick-adjust harness system and the Click & Safe Snug Indicator. You can easily adjust the five-point harness without re-threading. There are 14 harness positions, and the indicator will give an audible click to tell you whenever the tightness of the harness has reached the right level. So, the harness adjustment is really easy and dummy-proof.

Britax Advocate ClickTight can serve as a rear-facing car seat as well as a forward-facing car seat. In the rear-facing position, the weight limit is 5 – 40 lbs. In the forward-facing position, the weight limit is 20 – 65 lbs. The maximum height limit is 49 inches.

The safety is excellent. It has a highly durable steel frame with an impact-absorbing base, and it also has three layers of side impact protection. The pads are removable and machine-washable for easy cleaning. Unfortunately, Britax Advocate ClickTight does not come with a cup holder – but it is compatible with an optional cup holder sold by the company. Also, it is pretty wide and heavy. Not recommended for fitting three units across the backseat or traveling.

Pros of Britax Advocate ClickTight
– Three layers of side impact protection
– Very easy & secure installation with the ClickTight system
– Easy and precise harness adjustment without re-threading
– Decent height and weight limits
– Removable, machine-washable pads

Cons of Britax Advocate ClickTight
– Pretty wide, won’t be able to fit three units across
– Quite heavy
– The cup holder is sold separately

Get the best price for Britax Advocate ClickTight here!

2. Britax Boulevard ClickTight
Britax Boulevard ClickTight is also one of the best Britax convertible car seat models available in the market right now. In a glance, it looks very similar to the Advocate model that we previously discussed. However, this model is slightly lighter because it ‘only’ has two layers of side impact protection. That said, it is still able to provide very good safety and protection.

Just like the sibling, this model comes with the company’s patented ClickTight installation system for easy, quick, and secure set-up using the vehicle’s seatbelt. Another advantage of the ClickTight system is that it is compatible with most vehicles in the market, both older and newer.

Britax Boulevard ClickTight also has a similar quick-adjust five-point harness system with the Click & Safe Snug Indicator. It offers 14 harness positions, so that it can always give a snug fit to your growing child. You can change the harness position without re-threading, and the indicator will give an audible click once the harness has been tightened to the right level. Again, just like its sibling, Britax Boulevard ClickTight has removable, machine-washable pads and lacks a cup holder.

In the rear-facing position, the weight limit is 5 – 40 lbs. In the forward-facing position, the weight limit is 20 – 65 lbs. The maximum child height limit is 49 inches. Britax Boulevard ClickTight is noticeably slimmer as it measures 18.5 inches from side to side, but you need a wide car in order to fit three units across the same row. It is still pretty heavy at about 24 lbs.

Pros of Britax Boulevard ClickTight
– Two layers of side impact protection
– Decent height and weight limits
– Slimmer; can fit three units across in a wide car
– Easy, precise installation and harness adjustment
– Removable, machine-washable pads

Cons of Britax Boulevard ClickTight
– Still pretty heavy
– Lacks a cup holder

Get the best price for Britax Boulevard ClickTight here!

3. Britax Marathon ClickTight
Next, we have Britax Marathon ClickTight. It is a slightly more affordable version of Britax Boulevard ClickTight. It comes with many similar features. Although it only has one layer of side impact protection, it certainly has been tested to pass the safety standards, so it should be able to provide adequate protection to your child. Due to the features, Britax Marathon ClickTight is still one of the best Britax convertible car seats in the market right now.

For sure, it comes with the ClickTight installation system which allows you to set-up the car seat quickly and easily by using the vehicle’s seatbelt. The installation is solid and secure. The car seat does not move or wiggle around.

It also comes with the quick-adjust five-point harness system with 14 selectable positions. However, it does not have the click harness indicator for the tightness of the harness. But, this is not a major problem. You can adjust the harness easily without re-threading, and you can determine by yourself whether the tightness of the harness is good enough or not. Just make sure that the fit is snug enough without causing discomfort.

Britax Marathon ClickTight can also serve as a rear-facing car seat and convert into a forward-facing car seat. It is suitable for a child between 5 – 40 lbs while in the rear-facing position, and for a child between 20 – 65 lbs while in the forward-facing position. The maximum child height limit is still the same, which is 49 inches.

Britax Marathon ClickTight does not come with a cup holder, but an optional cup holder is available if you really need it. The seat cover is removable and machine-washable. The overall dimensions are quite similar to the Boulevard model; this model also measures 18.5 inches wide. You can fit three units across the backseat if your car is wide enough. However, it is still quite heavy, so it is not recommended for portable use or traveling.

Pros of Britax Marathon ClickTight
– Good safety and build quality
– Decent height and weight limits
– Slimmer; can fit three units across in a wide car
– Easy, precise installation and harness adjustment
– Removable, machine-washable seat cover

Cons of Britax Marathon ClickTight
– Still pretty heavy
– Lacks a cup holder
– Doesn’t have the click harness indicator

Get the best price for Britax Marathon ClickTight here!

4. Britax Roundabout G4.1
If you are looking for something that is a bit more portable, Britax Roundabout G4.1 can be your choice. Compared to the previous models, Britax Roundabout G4.1 is quite lighter. It also has a slimmer design than most of its siblings, and it is FAA-approved for airplane use. The lighter weight and the sophisticated safety features are the main reasons why this model is among the best Britax convertible car seat models in the market.

Britax Roundabout G4.1 comes with the Easy-On/Easy-Off LATCH connectors. You will hear an audible click once the connector is set properly. The set-up process is quite easy, and the installation is secure. It has a red release button for detaching the connectors quickly. Britax Roundabout G4.1 can also be installed with the vehicle’s seatbelt for compatibility with older vehicles that don’t have the LATCH connectors.

Britax Roundabout G4.1 measures 18.5 inches wide, 21 inches deep, and 26 inches tall. It can fit on most average-sized airplane seats, but you should double-check the width of the seat whenever traveling with your child. The weight is about 17.6 lbs. This is not the lightest option available in the market, but at least you can carry it with a trolley without a problem.

Unfortunately, this model doesn’t have a quick-adjust harness system. It has a tangle-free five-point harness system which requires manual re-threading. On the positive side, it has multiple harness positions and two buckle positions to provide the best fit for your growing child. It also has three recline positions. Britax Roundabout G4.1 features the SafeCell Impact Protection with an impact-absorbing steel frame and base, and the SafeCell Complete Side Impact Protection to shield your child against crash forces and debris particles.

Pros of Britax Roundabout G4.1
– Easy LATCH installation
– Slim design can fit on most airplane seats
– Relatively lighter than other Britax models
– Excellent safety features; FAA-approved for airplane use

Cons of Britax Roundabout G4.1
– Requires manual re-threading for harness adjustment
– Not the lightest option in the market

Get the best price for Britax Roundabout G4.1 here!

5. Britax Pinnacle ClickTight
Britax Pinnacle ClickTight is the best Britax convertible car seat for those who need a model that can be used later as a booster. This is a two-in-one model that starts as a forward-facing car seat for a toddler and then adapts into a high-back belt-positioning booster. It has easy installation and harness adjustment, and it comes with two layers of side impact protection.

In the forward-facing harness mode, Britax Pinnacle ClickTight is suitable for a child between 25 – 90 lbs with a maximum height of 58 inches. In the high-back belt-positioning booster mode, it is suitable for a child between 40 – 120 lbs with a maximum height of 62 inches. As you can see, the height and weight limits are very high, so you will be able to use this car seat for a long time.

This model also has the ClickTight installation system, so it is really easy to set-up. It also comes with the quick-adjust harness system that doesn’t require manual re-threading. It has 9 harness positions to provide a comfortable and secure fit for your growing child. In addition, it comes with two cup holders and a removable, machine-washable seat cover.

It goes without saying that this car seat is not suitable for a newborn baby, as it can’t be used rear-facing and it reclines only slightly. The width is about 19 inches. You won’t be able to fit three units across the same row, but fitting two units should be easy. The weight is about 24.9 lbs, so it is pretty heavy.

Pros of Britax Pinnacle ClickTight
– Easy, precise installation and harness adjustment
– Two layers of side impact protection
– Very high height and weight limits
– Comes with two cup holders
– Removable, machine-washable seat cover

Cons of Britax Pinnacle ClickTight
– Quite wide; won’t allow you to fit three units across
– Quite heavy
– Not suitable for an infant or newborn baby

Get the best price for Britax Pinnacle ClickTight here!

6. Britax Frontier ClickTight
Britax Frontier ClickTight is also a two-in-one convertible car seat that starts as a forward-facing car seat for toddlers and converts into a high-back booster seat for big kids. This model comes with three layers of side impact protection. However, this model is quite bigger and heavier.

This model also has the ClickTight installation system and the quick-adjust harness system with 9 selectable harness positions. So, it is also very easy to use. The safety is excellent; with three layers of side impact protection, it can easily withstand most crashes. The steel frame and impact-absorbing base will safeguard your child.

The height and weight limits are similar to the Pinnacle. The forward-facing harness mode is suitable for a child between 25 – 90 lbs, and the high-back belt-positioning booster mode is suitable for a child between 40 – 120 lbs.

However, due to the additional side impact protection layer, this model becomes even bigger and heavier. It measures 22.5 inches wide, 21 inches deep, and 36 inches tall. The weight of this model is about 26.5 lbs. So, it is not recommended for portable use or traveling.

Pros of Britax Frontier ClickTight
– Easy, precise installation and harness adjustment
– Three layers of side impact protection
– Very high height and weight limits
– Has two cup holders
– Easy to clean

Cons of Britax Frontier ClickTight
– Really wide and bulky; won’t allow you to fit three units across
– Heavy
– Not suitable for an infant or newborn baby

Get the best price for Britax Frontier ClickTight here!