KidShortlist
Britax · Convertible (0–4 y)

Britax Poplar S

Based on 1 independent scored test: BabyGearLab (2024). The test scores average 76. With only 1 test, the ranking score is pulled down a little until more testers confirm it.

Tested for US & Canada
69
Shortlist score
Good
#116 of car seats for US & Canada
Single test

Where to buy

This seat is certified for US & Canada. Car seats may only be used in the market they're approved for, so we don't link to shops in Czechia.

Test results

Each score as the tester published it, converted to our 0–100 scale. Weight is how much the result counts towards the score.

BabyGearLab US · Editorial review
BabyGearLab best convertible car seat review, 2024
76%
Our scale76
weight 0.60
Crash test
7.3
Ease of installation latch
8.0
Ease of installation belt
9.0
Ease of use
6.4
Comfort quality
7.0
Weight size
8.0
Listed at $400 metric weights: Crash Test (35%); Ease of Installation - LATCH (20%); Ease of Installation - Belt (15%); Ease of Use (15%); Comfort/Quality (10%); Weight/ Size (5%); overall listed on https://www.babygearlab.com/topics/vehicle-safety/best-convertible-car-seat/ratings; review last modified 2024-11-27
View on babygearlab.com ↗

Top-ranked alternatives

How we turn these into one number: methodology. Tested in 2024.

KidShortlist

We don't test products ourselves. Every score here comes from an independent tester and links back to it. We combine 4,061 results from 26 sources.

Read before buying

Several testers are paywalled, so we only include what they publish openly. Models change and get recalled. Check the tester's own page and the retailer listing before you buy.

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