Convertible Car Seats Comparison Chart
The chart below shows some basic differences between the convertible car seats we feature. Many of the differences between models are subtle – note that more detailed specs are available on the individual product pages.
Comparison Chart Key
Max wt Maximum weight capacity of carrier and harness Max Harness wt Maximum child weight using the harness
Min ht Minimum child height capacity
Max harness ht Maximum child height using the harness
Max ht Maximum child height capacity SIP Side Impact Protection (Y / N )
Max wt – rear Maximum child weight capacity in rear-facing position
Airplane FAA-approved for use on aircraft (Y / N)
Model Max wt Min ht Max ht Max wt – rear Max Harness wt Max harness ht SIP Airplane Price
Britax Boulevard 70 CS convertible car seat 70 lbs.
n/a
49″
40 lbs.
70 lbs.
49″
Yes
Yes
$217.00
Britax Advocate 70 CS convertible car seat 70 lbs.
n/a
49″
40 lbs.
70 lbs.
49″
Yes
Yes
$295.73
Britax Boulevard 70 convertible car seat 70 lbs.
n/a
49″
40 lbs.
70 lbs.
49″
Yes
Yes
$238.66
Britax Marathon 70 convertible car seat 70 lbs.
n/a
49″
40 lbs.
70 lbs.
49″
Yes
Yes
$230.99
Britax Boulevard CS convertible car seat 65 lbs.
49″
35 lbs.
65 lbs.
49″
Yes
Yes
$224.00
Britax Advocate CS convertible car seat 65 lbs.
49″
35 lbs.
65 lbs.
49″
Yes
Yes
$369.99
Britax Marathon convertible car seat 65 lbs.
18″
49″
35 lbs.
65 lbs.
49″
Yes
Yes
$223.99
Britax Marathon CS convertible car seat 65 lbs.
49″
35 lbs.
65 lbs.
49″
Yes
Yes
$199.99
Britax Boulevard convertible car seat 65 lbs.
n/a
49″
35 lbs.
65 lbs.
49″
Yes
Yes
$219.99
Britax Roundabout convertible car seat 40 lbs.
n/a
40″
35 lbs.
40 lbs.
40″
N
Y
$170.99
Britax Roundabout 50 convertible car seat 50 lbs.
49″
35 lbs.
50 lbs.
49″
No
Yes
$170.00
Britax Decathlon convertible car seat 65 lbs.
n/a
49″
35 lbs.
65 lbs.
49″
N
Y
$264.99
Britax Diplomat convertible car seat 40 lbs.
22″
40″
35 lbs.
40 lbs.
40″
Yes
Yes
$259.99
Britax Marathon Collegiate convertible car seat 65 lbs.
18″
49″
33 lbs.
65 lbs.
49″
N
Y
$237.99
Britax Roundabout 55 convertible car seat 55 lbs.
n/a
46″
40 lbs.
55 lbs.
46″
Yes
Yes
$159.99
Combi Coccoro convertible car seat 40 lbs.
19″
40″
33 lbs.
40 lbs.
40″
Yes
Yes
$76.69
Combi Zeus Turn convertible car seat 40 lbs.
40″
22 lbs.
40 lbs.
40″
Yes
No
$299.99
Combi Zeus 360 convertible car seat 40 lbs.
19″
40″
33 lbs.
40 lbs.
40″
Yes
No
$254.97
Eddie Bauer Deluxe 3-n-1 convertible car seat 100 lbs.
19″
52″
35 lbs.
40 lbs.
52″
N
$199.99
Graco MyRide 65 convertible car seat 65 lbs.
49″
40 lbs.
65 lbs.
Yes
Yes
$144.00
Graco ComfortSport convertible car seat 40 lbs.
n/a
40″
30 lbs.
40 lbs.
40″
No
Yes
$112.99
Maxi-Cosi Priori convertible car seat 40 lbs.
19″
43″
35 lbs.
40 lbs.
43″
Yes
$170.00
Orbit Baby Toddler Car Seat 50 lbs.
49″
35 lbs.
50 lbs.
49″
Yes
Yes
$360.00
RECARO Como G2 convertible car seat 70 lbs.
50″
35 lbs.
70 lbs.
50″
Yes
Yes
$244.99
RECARO Como convertible car seat 70 lbs.
50″
35 lbs.
70 lbs.
50″
Yes
Yes
$229.99
RECARO Signo G2 convertible car seat 70 lbs.
50″
35 lbs.
70 lbs.
50″
Yes
Yes
$279.99
RECARO Signo convertible car seat 70 lbs.
50″
35 lbs.
70 lbs.
50″
Yes
Yes
$289.99
RECARO ProRIDE convertible 70 lbs.
n/a
50″
35 lbs.
70 lbs.
50″
Yes
Yes
$279.99
RECARO ProRIDE convertible 70 lbs.
n/a
50″
35 lbs.
70 lbs.
50″
Yes
Yes
$279.99
RECARO Como G2 convertible car seat 70 lbs.
50″
35 lbs.
70 lbs.
50″
Yes
Yes
$164.99
RECARO ProRIDE convertible 70 lbs.
n/a
50″
35 lbs.
70 lbs.
50″
Yes
Yes
$279.99
RECARO ProRIDE convertible 70 lbs.
n/a
50″
35 lbs.
70 lbs.
50″
Yes
Yes
$279.99
Safety 1st Complete Air SE convertible car seat 50 lbs.
19″
50″
40 lbs.
50 lbs.
45″
Yes
Yes
$212.99
Safety 1st Complete Air LX convertible car seat 50 lbs.
19″
50″
40 lbs.
50 lbs.
45″
Yes
Yes
$181.99
Sunshine Kids Radian XTSL convertible car seat 80 lbs.
53″
45 lbs.
80 lbs.
53″
Yes
Yes
$204.99
Sunshine Kids Radian XT convertible car seat 80 lbs.
n/a
53″
40 lbs.
80 lbs.
53″
Yes
Yes
$279.99
Sunshine Kids Radian 80SL convertible car seat 80 lbs.
n/a
53″
45 lbs.
80 lbs.
53″
Yes
Yes
$186.99
Sunshine Kids Radian 80 convertible car seat 80 lbs.
n/a
53″
35 lbs.
80 lbs.
53″
Y
Y
$209.99
Sunshine Kids Radian 65SL convertible car seat 65 lbs.
53″
40 lbs.
65 lbs.
53″
Yes
Yes
$172.00
Sunshine Kids Radian convertible car seat 65 lbs.
53″
40 lbs.
65 lbs.
53″
Y
Y
$199.99
TriplePlay Sit N Stroll convertible car seat 40 lbs.
n/a
40″
40 lbs.
40 lbs.
40″
No
Yes
$249.99
(5.0 out of 5)
