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  • 6 VIDEOS
  • Britax Poplar S Convertible Car Seat, 2-in-1 Car Seat with Slim 17-Inch Design, ClickTight Technology, Sand Onyx
  • Britax Poplar S Video featuring 3 across seating Britax Child Safety

Britax Poplar S Convertible Car Seat, 2-in-1 Car Seat with Slim 17-Inch Design, ClickTight Technology, Sand Onyx

4.8 out of 5 stars (60)

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Color: Sand Onyx
Style: Poplar S
Maximum Weight Recommendation 65 Pounds
Minimum Weight Recommendation 5 Pounds
Maximum Height Recommended 49 Inches
Rear Facing Maximum Weight 50 Pounds
Forward Facing Maximum Weight 65 Pounds
Rear Facing Minimum Weight 5 Pounds
Forward Facing Minimum Weight 22 Pounds
Installation Type Seat Belt
Orientation Rear and Forward Facing
Harness Type 5-Point
Number of Height Positions 14

Warranty & Support

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Britax Poplar S Convertible Car Seat, 2-in-1 Car Seat with Slim 17-Inch Design, ClickTight Technology, Sand Onyx


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Product Description

Ready to go with room to grow! The Britax Poplar™ S convertible car seat takes the stress out of moving to the next car seat stage thanks to the patented ClickTight® installation and slim SpaceSaver™ design. This convertible car seat accommodates up to 50 lbs when installed rear-facing, allowing your child to ride rear-facing longer. It easily switches to a forward-facing car seat as your child grows, accommodating up to 65 lbs. ClickTight technology provides fully open seat belt paths that are clearly labeled and easy to access, and the automatic tensioner takes care of the tightening. The baby car seat lets you easily adjust the 14-position no-rethread harness and headrest to help create the perfect fit, and the removable infant insert provides extra comfort on the go. The car seat features 17-inch SpaceSaver technology designed to fit 3-across* without compromising on Britax safety and premium comfort. The car seat boasts a patented SafeCell® crumple zone and V-shaped top tether to help manage crash energy. Carbon steel frame and belt paths provide strength and stability. Car seat cover fabrics are naturally flame-retardant with no added FR chemicals, and they’re safe to machine wash and dry time and again. *Britax cannot guarantee 3-across installation fitment in all vehicles


From the manufacturer

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From the brand

Customer reviews

4.8 out of 5 stars
60 global ratings

Customers say

Customers find the car seat easy to install with its ClickTight technology and appreciate its sturdy construction, with one noting it's built with all steel framing. Moreover, the car seat receives positive feedback for its plush cushioning, safety features, and comfortable fit, with one customer mentioning it can accommodate three children rear-facing. Additionally, customers like its luxurious appearance.
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17 customers mention ease of installation, 15 positive, 2 negative
Customers find the car seat easy to install, particularly appreciating its ClickTight technology, and one customer mentions that it can be removed as the child grows.
...heavier side so I would not recomend as a travel car seat but is easy to install and the material very soft on my baby’s skin.Read more
I swear by this brand for a car seat. It doesn’t budge with the click tight technology and gives me so much peace of mind....Read more
...It is heavy and easy to install in the car, the cushions are enough, which can be removed as he grows. My son really liked the new seat....Read more
This seat is awesome! Easy to get kids in and out and it gets great safety ratings.Read more
14 customers mention quality, 14 positive, 0 negative
Customers find the car seat to be of good quality, with one customer specifically praising the infant insert.
...It is a testament to the engineering, safety, and quality. Plus my daughter is so comfortable in it.Read more
...car seat came up in my final search as a compact seat that was also high quality....Read more
good quality, convenient and easy to useRead more
This car seat is wonderful! I have done lots of research on different ones and we finally settled on the poplar s!...Read more
10 customers mention cushioning, 10 positive, 0 negative
Customers appreciate the car seat's cushioning, noting that the fabric feels nice and the seat is very plush for babies, with one customer mentioning it has plenty of padding.
Not only is this seat extremely luxurious looking and feeling, it’s extremely sturdy, seems easy to clean, installed so easily with the latch option...Read more
...Baby loves it. Seems very comfy because it has a lot of padding. It feels like a very safe car seat. We bought two....Read more
...The fabric is super soft and the seat is extra padded....Read more
...The cushions are extremely cushy, and separate from the frame easy enough to make washing the seat padding less of a hassle compared to other car...Read more
7 customers mention safety, 7 positive, 0 negative
Customers appreciate the car seat's safety features.
...I love how safe and reliable britax car seats are!Read more
...It feels like a very safe car seat. We bought two. I tell everyone they could buy it!Read more
This seat is awesome! Easy to get kids in and out and it gets great safety ratings.Read more
...It is a testament to the engineering, safety, and quality. Plus my daughter is so comfortable in it.Read more
6 customers mention sturdiness, 6 positive, 0 negative
Customers find the car seat sturdy, with one customer noting it's built with all steel framing, and another mentioning it adds significant stability.
...is this seat extremely luxurious looking and feeling, it’s extremely sturdy, seems easy to clean, installed so easily with the latch option...Read more
...easy to install (the easiest one we’ve tried between two kids), feels very sturdy, the height adjustments work great for our tall kiddo, and it’s...Read more
...And we travel 12+ hrs to a destination. Its built with all steel framing that is what we were looking for and this is what we got....Read more
...So far it, like its predecessor, stand up great to the kids!Read more
5 customers mention comfort, 5 positive, 0 negative
Customers find the car seat comfortable.
...Plus my daughter is so comfortable in it.Read more
...I’m really glad we chose this car seat. Baby loves it. Seems very comfy because it has a lot of padding. It feels like a very safe car seat....Read more
As nice and comfortable as the nuna RAVA convertible. We bought one of each for each of our girls and they are equally great....Read more
...it at full price due to how safe it is for our child and comfortable to boot. It's worth every penny!Read more
5 customers mention fit, 5 positive, 0 negative
Customers like how the car seat fits, with one mentioning it accommodates three children rear-facing and another noting there's enough space for bigger kids.
...Instillation is fast and frustration free and I can easily fit 3 across rear facing in my 2021 rav4....Read more
...This seat is compact and fits well in my Subaru Impreza Sport....Read more
...My baby fits so well in it, she is currently 6 months and the infant insert is amazing!...Read more
...She fit so well (despite being tiny!) but the install is incredible!! So easy with very clear directions. Simple to get it tight....Read more
5 customers mention looks, 5 positive, 0 negative
Customers like the car seat's appearance, describing it as super luxurious looking.
...it’s super luxurious looking and feeling....Read more
Love this car seat! The color is beautiful and the install was the easiest I’ve ever done! The click tight is where it’s at!...Read more
...So easy to install and feels so safe. Heavy duty and looks lux too.Read more
...Functionality is great. It looks and feels nice. My baby is a sweater and there are no stains we've had this for 5 months....Read more
Happy Toddler, happy siblings and great road trip+
5 out of 5 stars
Happy Toddler, happy siblings and great road trip+
We love britax! This was the best choice for our toddler. We are a sports family who is always on the road. And we travel 12+ hrs to a destination. Its built with all steel framing that is what we were looking for and this is what we got. It is super easy to install and adjust. The safety is the best when it comes to britax. Functionality is great. It looks and feels nice. My baby is a sweater and there are no stains we've had this for 5 months. Cleaning is simple or a simple youtube short. Best bang for your buck. The best!
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Top reviews from the United States

  • Reviewed in the United States on April 23, 2025
    Color: Sand OnyxStyle: Poplar SVerified Purchase
    The media could not be loaded.
    We love britax! This was the best choice for our toddler. We are a sports family who is always on the road. And we travel 12+ hrs to a destination. Its built with all steel framing that is what we were looking for and this is what we got. It is super easy to install and adjust. The safety is the best when it comes to britax. Functionality is great. It looks and feels nice. My baby is a sweater and there are no stains we've had this for 5 months. Cleaning is simple or a simple youtube short. Best bang for your buck. The best!
    Customer image
    5.0 out of 5 stars
    Happy Toddler, happy siblings and great road trip+

    Reviewed in the United States on April 23, 2025
    We love britax! This was the best choice for our toddler. We are a sports family who is always on the road. And we travel 12+ hrs to a destination. Its built with all steel framing that is what we were looking for and this is what we got. It is super easy to install and adjust. The safety is the best when it comes to britax. Functionality is great. It looks and feels nice. My baby is a sweater and there are no stains we've had this for 5 months. Cleaning is simple or a simple youtube short. Best bang for your buck. The best!
    Images in this review
    Customer image
    10 people found this helpful
    Report
  • Reviewed in the United States on December 2, 2024
    Color: Sand OnyxStyle: Poplar SVerified Purchase
    Love this car seat! The color is beautiful and the install was the easiest I’ve ever done! The click tight is where it’s at!
    My baby is 7 months old and small for his age, but we wanted to switch from the bucket seat because he was getting too heavy to carry around in it.
    I’m really glad we chose this car seat. Baby loves it. Seems very comfy because it has a lot of padding.
    It feels like a very safe car seat. We bought two. I tell everyone they could buy it!
    2 people found this helpful
    Report
  • Reviewed in the United States on January 28, 2026
    Color: Sand OnyxStyle: Poplar SVerified Purchase
    We LOVE this car seat! So easy to install and feels so safe. Heavy duty and looks lux too.
  • Reviewed in the United States on December 4, 2025
    Color: Sand OnyxStyle: Poplar SVerified Purchase
    The best!
    I bought this when transitioning our 8 month old when I didn’t want to carry an infant seat. She fit so well (despite being tiny!) but the install is incredible!! So easy with very clear directions. Simple to get it tight. We tried a Graco car seat and found the install really challenging. The fabric also feels nice and high quality (have had it over a year now).
  • Reviewed in the United States on April 13, 2024
    Color: Sand OnyxStyle: Poplar SVerified Purchase
    Not only is this seat extremely luxurious looking and feeling, it’s extremely sturdy, seems easy to clean, installed so easily with the latch option (I’m sure seatbelt is easy too)! My baby fits so well in it, she is currently 6 months and the infant insert is amazing! I love that this will allow my baby to stay rear facing longer and will grow with her! 100% will be buying another when I have a second baby!
    Customer image
    5.0 out of 5 stars
    Love love love! Better than expected!

    Reviewed in the United States on April 13, 2024
    Not only is this seat extremely luxurious looking and feeling, it’s extremely sturdy, seems easy to clean, installed so easily with the latch option (I’m sure seatbelt is easy too)! My baby fits so well in it, she is currently 6 months and the infant insert is amazing! I love that this will allow my baby to stay rear facing longer and will grow with her! 100% will be buying another when I have a second baby!
    Images in this review
    Customer image Customer image
    11 people found this helpful
    Report
  • Reviewed in the United States on June 17, 2024
    Color: Sand OnyxStyle: Poplar SVerified Purchase
    I was dead set on purchasing a Nuna Rava, however I was turned off by the nonsensical cup holder placement. This Britax Poplar car seat came up in my final search as a compact seat that was also high quality. Being so determined on the Nuna Rava, I half expected that I might return the Poplar S. However I was pleasantly surprised by the quality and design of the Britax. The fabric is super soft and the seat is extra padded. I was previously using a hand-me-down Safety1st car seat and it’s insane how better the Poplar quality is as compared to a $150 car seat alternative.

    This seat is compact and fits well in my Subaru Impreza Sport. Install was pretty easy but I will need to put a rolled up towel under the seat to even it out and use the rebound bar.

    Summary: I’m impressed by this car seat as a competitor to other high-end, pricier alternatives like the Nuna Rava.
    15 people found this helpful
    Report
  • Reviewed in the United States on March 6, 2025
    Color: Sand OnyxStyle: Poplar SVerified Purchase
    I bought a car seat in February 2025, my child is 2.4. I chose a safer and higher one so that he could see out the window. It is heavy and easy to install in the car, the cushions are enough, which can be removed as he grows. My son really liked the new seat. The only thing I don’t like is the very short straps on the shoulders, the last two days he has been complaining that the fastener between his legs is pressing on him and asking to release it. I tried to lengthen them under the seat, but I pulled out everything I could and it was not enough. I don’t know what to do ... maybe someone can advise me ...
    One person found this helpful
    Report
  • Reviewed in the United States on August 25, 2024
    Color: Sand OnyxStyle: Poplar SVerified Purchase
    I swear by this brand for a car seat. It doesn’t budge with the click tight technology and gives me so much peace of mind. Was rear ended and replaced my old Britax car seat with this one. This is one of the few that is manufactured and recommended to be replaced after 2 minor accidents vs 1. It is a testament to the engineering, safety, and quality. Plus my daughter is so comfortable in it.

Product Summary: Britax Poplar S Convertible Car Seat, 2-in-1 Car Seat with Slim 17-Inch Design, ClickTight Technology, Sand Onyx

From Britax

4.8 out of 5 stars, 60 ratings

Customer reviews

100+ viewed in past week

Price

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About this Item

  • 2-in-1 Convertible Car Seat: The Britax Poplar S fits up to 50 lbs when installed rear-facing while easily switching to forward-facing as your child grows
  • Install with Confidence Every Time: With ClickTight technology, there’s no guessing or stressing. Fully open seat belt paths are clearly labeled and easy to access; open, thread and buckle and click it closed
  • ReboundReduce Stability Bar: Carbon steel bar easily attaches to the car seat when installed rear-facing to minimize movement in the event of a crash; must be removed when installed forward-facing
  • Refined Comfort, Tailored Fit: This Britax car seat features premium inserts and padding to create an elevated fit and feel
  • SpaceSaver Design: Slim 17" seat is designed to fit 3-across* without compromising on trusted Britax safety and premium comfort. *Britax cannot guarantee 3-across installation fitment in all vehicles
  • Room to Grow: 14-position no-rethread harness and headrest adjust together easily to help create the perfect fit
  • Britax Safety: The carbon steel frame and SafeCell crumple zone help absorb crash energy, and a patented V-shaped tether helps slow forward movement
  • Flip-Forward Buckle Pad: Stays out of the way for easy boarding in the toddler car seat
  • Naturally Flame-Retardant: The car seat cover is made of naturally flame-retardant fabric with no added FR chemicals
  • Simple Cleaning: The rear-facing car seat features a washer and dryer-friendly cover and 2 dishwasher-safe cup holders

Product Description

Ready to go with room to grow! The Britax Poplar™ S convertible car seat takes the stress out of moving to the next car seat stage thanks to the patented ClickTight® installation and slim SpaceSaver™ design. This convertible car seat accommodates up to 50 lbs when installed rear-facing, allowing your child to ride rear-facing longer. It easily switches to a forward-facing car seat as your child grows, accommodating up to 65 lbs. ClickTight technology provides fully open seat belt paths that are clearly labeled and easy to access, and the automatic tensioner takes care of the tightening. The baby car seat lets you easily adjust the 14-position no-rethread harness and headrest to help create the perfect fit, and the removable infant insert provides extra comfort on the go. The car seat features 17-inch SpaceSaver technology designed to fit 3-across* without compromising on Britax safety and premium comfort. The car seat boasts a patented SafeCell® crumple zone and V-shaped top tether to help manage crash energy. Carbon steel frame and belt paths provide strength and stability. Car seat cover fabrics are naturally flame-retardant with no added FR chemicals, and they’re safe to machine wash and dry time and again. *Britax cannot guarantee 3-across installation fitment in all vehicles

Options Available

Color

  • Arctic Onyx
  • Cobal Onyx
  • Glacier Graphite
  • Magenta Onyx
  • Ruby Onyx
  • Sand Onyx
  • Stone Onyx

Style

  • Poplar S
  • Poplar
Browse all available options

Important Information

Safety Information

  1. To learn about the safe use of car seats and correct installation, visit the <a href="https://www.nhtsa.gov/equipment/car-seats-and-booster-seats?utm_source=amazon&utm_medium=amazon-details&utm_content=nhtsa-car-seats-main" target="_blank">National Highway Traffic Safety Administration (NHTSA)</a>. Disclaimer: NHTSA doesn't endorse this item. The link is for informational purposes.
  2. To learn about the safe use of car seats and correct installation, visit the <a href="https://www.nhtsa.gov/equipment/car-seats-and-booster-seats?utm_source=amazon&utm_medium=amazon-details&utm_content=nhtsa-car-seats-main" target="_blank">National Highway Traffic Safety Administration (NHTSA)</a>. Disclaimer: NHTSA doesn't endorse this item. The link is for informational purposes.

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