● Car Seats · Review

Evenflo Sonus Convertible Car Seat

Evenflo's Sonus is a lightweight, affordable convertible seat often chosen as a second seat or for travel.

✎ PickHonest Research Desk▦ Updated October 15, 2026◷ 3 min read

As an Amazon Associate I earn from qualifying purchases. Picks are based on manufacturer specs, independent reviews and owner reports.

Evenflo Sonus Convertible Car Seat

Evenflo Sonus Convertible Car Seat

Evenflo

Evenflo's Sonus is a lightweight, affordable convertible seat often chosen as a second seat or for travel.

Pros

Light and easy to move between cars
Budget price for a convertible seat
Rear- and forward-facing use
Compact enough for smaller back seats

Cons

Fewer padding and convenience features
Harness height adjustment requires rethreading
Less legroom rear-facing than extended-legroom seats

Prices and availability change, so confirm on Amazon.View on Amazon

Appears in

Where the Evenflo Sonus Convertible Car Seat ranks

Chicco KeyFit 35 Infant Car Seat

Best picksBest Car Seats for Small Cars: Top Picks for Compact Back SeatsOur top pick for car seats for small cars is the Chicco KeyFit 35 Infant Car Seat (for small cars).

Evenflo LiteMax 35 Infant Car Seat

Best picksBest Car Seats for Travel: Top Picks for Flying and Rental CarsOur top pick for car seats for travel is the Evenflo LiteMax 35 Infant Car Seat (for travel).

Evenflo LiteMax 35 Infant Car Seat

Best picksBest Car Seats Under $150: What Actually Fits This BudgetOur top pick for car seats under $150 is the Evenflo LiteMax 35 Infant Car Seat (Meets the same FMVSS 213 federal safety standard as seats costing twice as much).

Chicco KeyFit 35 Infant Car Seat

ComparisonChicco KeyFit 35 Infant Car Seat vs Evenflo Sonus Convertible Car SeatBoth made our Best Car Seats for Small Cars shortlist, at #1 and #3.

Evenflo LiteMax 35 Infant Car Seat

ComparisonEvenflo LiteMax 35 Infant Car vs Evenflo Sonus Convertible Car SeatBoth made our Best Car Seats for Travel shortlist, at #1 and #3.