Britax S14746900 Car Seat
- Car_seat
- Alloy Steel
- 50 pounds
- 26 pounds
A Britax convertible-style car seat covering newborn to toddler with a 50 pound capacity, installed by seat belt, with a steel frame adding to its 26 pound weight.
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How it ranks among the 125 car_seats we track
4.4★ across 156 Amazon ratings, Bayesian-smoothed toward the category average.
156 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Modest tracked demand last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 125 car_seats we track - how the scorecard works · full car_seats data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The Britax S14746900 is a car seat spanning newborn to toddler use, rated to a 50 pound weight capacity. It has an alloy steel frame, weighs 26 pounds, measures roughly 37 by 23.5 by 44 inches, and installs using the vehicle's seat belt.
Covering newborn through toddler in one seat suggests a convertible design that rear-faces for infants and later turns forward-facing, though the listing does not spell out that switch or give a rear-facing weight minimum. Installation is stated as seat belt only, with no mention of a LATCH system, which buyers who prefer LATCH should confirm before ordering.
- Newborn to toddler age range
- 50 lb weight capacity
- Alloy steel frame
- Seat belt installation
Who it's for
Fits parents wanting one car seat to carry a child from newborn through the toddler years rather than replacing seats at each stage. Less ideal for anyone who specifically wants LATCH installation, since only seat belt installation is confirmed here.
Strengths and trade-offs
Drawn from this product's published specifications.
- Covers newborn through toddler in one seat
- Steel frame for structural support
- 50 pound weight capacity
- 26 pounds is heavy to move between cars
- LATCH installation not confirmed
Performance notes
The 50 pound weight capacity and newborn-to-toddler age range point to a seat that adjusts as a child grows, though specific recline or harness positions are not listed. At 26 pounds with an alloy steel frame, it is on the heavier side for a car seat, which can matter if it will be moved between vehicles. Installation is by seat belt rather than a stated LATCH connector.
Specifications
| Brand | Britax |
|---|---|
| Model | S14746900 |
| Dimensions & fit | |
| Weight Capacity | 50 pounds |
| Item Weight | 26 pounds |
| Dimensions | 37 × 23.5 × 44 inches |
| Capacity & performance | |
| Age Range | Newborn to Toddler |
| Construction & materials | |
| Material | Alloy Steel |
| Compatibility & installation | |
| Installation | Seat Belt |
Other Britax car_seats
How it compares
This product against the closest alternatives we track in car_seats.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Britax S14746900 Car SeatThis product | 4.4 / 5 | 156 | 3.6 / 5 |
| Graco TurboBooster 2.0 Backless Booster Car SeatGraco | 4.8 / 5 | 11,473 | 4.7 / 5 |
| Cosco BC030BJDZ Car SeatCosco | 4.7 / 5 | 14,861 | 4.6 / 5 |
| Safety CC409HMO Car SeatSafety | 4.7 / 5 | 34,724 | 4.6 / 5 |
| Doona SP101-10-033-003 Car SeatDoona | 4.8 / 5 | 15,335 | 4.6 / 5 |
Similar car_seats from other brands
Questions about the Britax S14746900
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What weight range does it cover?
Up to 50 pounds, spanning newborn to toddler use.
How much does the car seat weigh?
About 26 pounds.