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Urbini Sonti Car Seat Review

The Urbini Sonti is available on both Amazon and Walmart

$63 on (car seat only)

$200 on (includes travel system)


Urbini has a new rear-facing only car seat, the Urbini Sonti.  Like previous models from Urbini, the Sonti does not disappoint!

See below for our full Urbini Sonti car seat review
Last updated August, 2018

Quick Stats

  • Weight range: 4-35 pounds
  • Height range: up to 32 inches tall
  • Lowest harness position: 4.5 inches
  • Weight (carrier only): 7.2 pounds
  • Expiration: 6 years
  • Handle position: Any locked position


  • 3 position adjustable crotch strap (3.5, 5, and 6 inches from the back of the seat shell)
  • 3 position adjustable hip straps
  • Extra grip lockoff on car seat base
  • 4 position adjustable recline positions
  • Multi-age recline indicator
  • Push button lower anchor connectors
  • Infant insert
  • Shell height:  19.5 inches


Unique Features of the Urbini Sonti 

Three position adjustable crotch strap (3.5, 5, and 6 inches from the back of the seat) and three position adjustable hip straps makes the Sonti a very adjustable rear facing only seat that fits both little and big infants.

Extra grip lockoff on the car seat base works helps installing with the vehicle seat belt by not having to worry about how your seat belt locks.  Just push the black tab on the end of it out of the way and swing the arm up.  Then buckle and pull all the slack out of the belt (don’t tighten as it makes the lock off near impossible to close and it isn’t necessary) and push the arm down.

Four position adjustable recline positions allows the seat to be adjusted to a wide range of recline levels to fit a wide variety of vehicles and child sizes.  The knob adjuster makes the adjusting the recline as easy as the turn of a knob as well.

Multi-age recline indicator allows larger infants to sit more upright.  As infants get older/larger, they tend to like to sit more upright and this allows the parent/caregiver to adjust it for the child’s preference.

Push button lower anchor connectors makes for an easier installation.  You just push the lower anchors on and you’re set.

Infant insert can be used at any weight.  The Sonti doesn’t come with a separate preemie insert, but the infant insert that comes with the seat does a great job of positioning even the 4 pound model we used.


Installation With the Base

Installation with the base is as easy as sitting the base on the vehicle seat, adjusting to the correct recline, flipping the lock off up, attaching either the lower anchors or seat belt, closing the lock off and you’re done.  Truly one of the easiest installations I’ve had with all the rear facing only seats I’ve installed.  One tip to remember is to not totally tighten the lower anchor connector strap or seat belt.  It just needs to have the slack pulled out.  If you tighten too much, it makes it near impossible to close the lock off.

Installation Without the Base

Installation without the base is just as simple.  Follow the red line at the bottom of the car seat, stand behind the seat pressing your weight into the seat back, thread the lap belt portion of the seat belt through the belt guides, buckle and lock the belt.  The Sonti doesn’t allow Euro routing, so the shoulder belt needs to lay against the vehicle seat and the lap belt through the belt guides on the car seat.  Euro routing is an additional installation method where the shoulder belt routes behind the car seat usually making the installation a bit tighter than without.  The Urbini Petal allows this install method, whereas the Sonti does not.


Adjustable hip and crotch strap information

Due to the variety of hip and crotch strap positions, there is a wide variation of when to move each strap.  There is no required age/size to move either piece, but the Sonti manual does a great job of explaining which position each strap should be in.

Fit to child: Preemie

At 4 pounds and 17 inches long, our  “preemie” doll represents the average small preemie. The Sonti fit her very well. Her shoulders were just barely above the lowest harness slot.  Since she’s under 8 pounds, the infant insert was used and the crotch and hip straps were in the smallest positions.

Fit to child: Newborn

Our newborn doll weighs 7 pounds and is 17 inches long. She is roughly the size of an actual newborn. She had a great fit as well on the smallest harness positions with the infant insert.  Her shoulders were also just barely above the bottom harness slot.

Fit to child: toddler

Our 1 year old model weighs 16 pounds and is 29 inches long. He has about an inch before the top of his head is 1″ from the top of the seat’s shell. It would be outgrown at that point.  With how much his growth has slowed down though, this could be several more months.  I love how tall the Sonti is and Anders has a great fit with the harness in the second to top harness slot.  He hasn’t had any complaints about this seat.

Unlike our other dolls, this model can be a bit wiggly when we’re trying to buckle her into her car seat, but since belt guides double as holders for the harness and buckle tongues, I can put them out of the way and get her seated. She normally rides in one of several convertible seats, but seems to really enjoy riding in the B-Safe 35 Elite, so she’ll keep using it for now.

Where to Find

FAA Approval: is on the back of the carrier portion of the seat. The carrier portion of the seat is approved for use on airplanes. It’s also listed and on page 12 of the owner’s manual.

Manual Storage: The manual comes attached to the harness, but can be stored in a very handy spot at the back of the base.

Expiration: can be found on the underside of the car seat and on the inside of the base, along with on page 11 of the owner’s manual.

Final Thoughts

I have really been impressed with the Sonti.  It’s one of the last rear facing only seats that still fits larger babies, yet also fits little newborns and preemies well.  It is a decently tall seat, so it does take up a fair amount of front to back room.  It’s a nice inexpensive long-lasting rear facing only seat though.  If you’re in the market for a travel system, it’s definitely a great way to go.

Interested in the Sonti for yourself?  You can find the full Urbini travel system with the car seat included for around $200 on


urbini sonti

Where to Buy

The Urbini Sonti is available on both Amazon and Walmart

$63 on (car seat only)

$200 on (includes travel system)

As always, all opinions included in this review are our own. 

Working Parents Handbook did not receive and does not accept any solicitation or compensation for this review from Urbini or its affiliates. 

Working Parents Handbook may earn commissions from links included on this page.