Britax is most known for their infant car seat the B-Safe 35, and the Boulevard is a convertible seat for your baby to graduate to around one year when they outgrow their infant seat. (You can also start with the convertible car seats and skip the infant one altogether. Make an informed choice. If you are planning on using this car seat from infancy, consider the version with an anti-rebound bar, too.)
Since your child has to stay in a convertible car seat until they are four years old, the Boulevard ranges from 5-40 lbs in the rear-facing position, from 20-65 lbs in the forward-facing position, and up to 49” tall.
The car seat has clip-style LATCH anchors that are easy to use. The seven-position recline allows you to correctly level the seat, and it has an indicator to show if it’s installed in the right position. However you cannot adjust the recline while the child is in the seat, like you can with some Graco convertibles. You have to uninstall the car seat to reset the recline.
Once your child is more than 40 lbs (between four and five years), you’ll need to reinstall the car seat using seat belts, not LATCH. Luckily, the ClickTight system makes seat belt installation really easy. (Car seat installation easy? Yes!) It has an internal patented system that clamps right down on the seat belt.
Britax ClickTight car seats are also known for their V-shaped tether that connects to a LATCH anchor behind the seat and helps stabilize the car seat in the forward-facing direction.
The Boulevard also has a “Click & Snug” harness indicator which makes clicking sounds when the harness is tight enough around the baby which is a nice reassurance that your baby is safe. The no-rethread adjustable harness is really simple to use and has fourteen positions to grow with your child. The car seat cover is easy to remove, but it can only be hand washed.
Your child will probably need a booster seat before they are tall enough (4’ 9”) to use a regular seat belt, but you can move straight from the Boulevard to a backless booster rather than getting a highback booster.
The other car seats in the ClickTight line are the Marathon and the Advocate. The Marathon is significantly cheaper. It has 12 harness positions, not 14, and has a shorter seated shoulder height limit. It is also bit harder to install with the seat belt because the guides are in a slightly different place and it does not have the additional side impact head restraint. On the pricer side, the Advocate offers premium fabrics and padding. This is kinda useless on infant car seats, but can be nicer for toddlers, especially if you are planning on taking long car trips as a family.