# Convertible car seats compared by crash test results

Which convertible car seats have the strongest crash test results?

UPPAbaby Rove: In this lab's commissioned crash tests the Rove scored one of the best results, with head and chest sensor forces below the group average, indicating an extra margin of protection\. The Rove performed very well in this lab's crash test protocol with no significant structural integrity issues, and crash protection was rated at the top level\. Graco SlimFit 3\-in\-1 Narrow All\-in\-One Convertible Car Seat: Testers report the SlimFit had some of the best crash\-test sensor results in their comparison, with low HIC and chest\-clip forces\. Romer\-dc\-dc Veni Convertible Car Seat: Crash test results were better than average but not standout; the chest clip sensor results were good and the head sensor results were relatively low but not the lowest\. CYBEX Sirona S: In that lab’s crash\-test analysis the seat scored below average against the competition, though it meets federal standards; head sensor readings were better than most but the chest clip reading was not\. Cybex \(sold as Cybex\-dc\) Callisto G 360: In independent sled testing the seat gave below\-average sensor readings: head sensor results were just below average and chest clip g\-forces were significantly above average, though it was not the worst in its group\. In independent simulated frontal crash tests with a forward\-facing 6\-year\-old dummy installed with lap\-and\-shoulder belt plus top tether, the tether system released before the head reached its most forward position in all three tests — the tether hook broke twice and the sled's tether anchor broke once; in a weighted 6\-year\-old dummy test the tether strap sheared off after the double webbing section\.

### 1. [UPPAbaby Rove](/products/ucp/albeebaby-com/9722099466471) (sold by albeebaby\.com)

The Rove performed very well in this lab's crash test protocol with no significant structural integrity issues, and crash protection was rated at the top level\.

- Crash test: In this lab's commissioned crash tests the Rove scored one of the best results, with head and chest sensor forces below the group average, indicating an extra margin of protection\. (review) <https://www.babygearlab.com/reviews/vehicle-safety/convertible-car-seat/uppababy-rove>
- Certification: -
- Weight limits: The seat is rated rear\-facing to 50 lb and forward\-facing to 65 lb\. (listing) <https://dd1dfe-a3.myshopify.com/products.json>

### 2. [Graco SlimFit 3\-in\-1 Narrow All\-in\-One Convertible Car Seat](/products/ucp/albeebaby-com/9564451504359) (sold by albeebaby\.com)

Testers report the SlimFit had some of the best crash\-test sensor results in their comparison, with low HIC and chest\-clip forces\.

- Crash test: Testers report the SlimFit had some of the best crash\-test sensor results in their comparison, with low HIC and chest\-clip forces\. (review) <https://www.babygearlab.com/reviews/vehicle-safety/convertible-car-seat/graco-slimfit-3-in-1>
- Certification: This child restraint meets or exceeds Federal Motor Vehicle Safety Standard 213 for use in motor vehicles\. (manual) <https://download.gracobaby.com/ProductInstructionManuals/PD349304A_PD349305A.pdf>
- Weight limits: The seat is rear\-facing 5\-40 lb, forward\-facing 22\-65 lb, and belt\-positioning booster 30\-100 lb\. (listing) <https://dd1dfe-a3.myshopify.com/products.json>

### 3. [Romer\-dc\-dc Veni Convertible Car Seat](/products/ucp/albeebaby-com/9564461170919) (sold by albeebaby\.com)

Crash test results were better than average but not standout; the chest clip sensor results were good and the head sensor results were relatively low but not the lowest\.

- Crash test: Crash test results were better than average but not standout; the chest clip sensor results were good and the head sensor results were relatively low but not the lowest\. (review) <https://www.babygearlab.com/reviews/vehicle-safety/convertible-car-seat/romer-veni>
- Certification: -
- Weight limits: The seat starts as an infant car seat with extended rear\-facing capacity up to 50 lb and converts to a forward\-facing toddler seat for children up to 65 lb\. (listing) <https://dd1dfe-a3.myshopify.com/products.json>

### 4. [CYBEX \(listed by the store as Cybex\-dc\) Sirona S](/products/ucp/albeebaby-com/9565344956647) (sold by albeebaby\.com)

In that lab’s crash\-test analysis the seat scored below average against the competition, though it meets federal standards; head sensor readings were better than most but the chest clip reading was not\.

- Crash test: In that lab’s crash\-test analysis the seat scored below average against the competition, though it meets federal standards; head sensor readings were better than most but the chest clip reading was not\. (review) <https://www.babygearlab.com/reviews/vehicle-safety/convertible-car-seat/cybex-sirona-s>
- Certification: The restraint meets Federal Motor Vehicle Safety Standard 213 and is certified for use in passenger cars, multi\-purpose passenger vehicles, buses and trucks with lap/shoulder belts\. (manual) <https://www.cybex-online.com/on/demandware.static/-/Sites-cybex-master-catalog/default/dw4161ce8c/pdfs/manuals/CS_GO_Sirona_S_SensorSafe_3_0_US/cy_171_6048_c1219_sirona_s_us_ug_en_es-5e7a33c94960b.pdf>
- Weight limits: The maker classes it as a convertible car seat for children from 4 lbs up to 65 lbs, up to 49 in tall, from newborn to about 4 years old\. (guide) <https://www.cybex-online.com/en/us/p/10067085.html>

### 5. [Cybex \(sold as Cybex\-dc\) Callisto G 360](/products/ucp/albeebaby-com/9722094616807) (sold by albeebaby\.com)

In independent sled testing the seat gave below\-average sensor readings: head sensor results were just below average and chest clip g\-forces were significantly above average, though it was not the worst in its group\.

- Crash test: In independent sled testing the seat gave below\-average sensor readings: head sensor results were just below average and chest clip g\-forces were significantly above average, though it was not the worst in its group\. (review) <https://www.babygearlab.com/reviews/vehicle-safety/convertible-car-seat/cybex-callisto-g-360>
- Certification: -
- Weight limits: -

## Also cited in the text

- UPPAbaby Rove, crash protection: The Rove performed very well in this lab's crash test protocol with no significant structural integrity issues, and crash protection was rated at the top level\. (review) <https://www.consumerreports.org/babies-kids/car-seats/uppababy-rove/m419521/>
- Cybex \(sold as Cybex\-dc\) Callisto G 360, crash performance: In independent simulated frontal crash tests with a forward\-facing 6\-year\-old dummy installed with lap\-and\-shoulder belt plus top tether, the tether system released before the head reached its most forward position in all three tests — the tether hook broke twice and the sled's tether anchor broke once; in a weighted 6\-year\-old dummy test the tether strap sheared off after the double webbing section\. (review) <https://www.consumerreports.org/babies-kids/car-seats/cybex-callisto-g-360-rotating/m416892/>

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Written 2026-10-23T08:27:08.571Z.

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