Chicco Fit4 4-in-1 Convertible Car Seat - Stratosphere

Chicco Fit4 4-in-1 Convertible Car Seat 

Day One to Year Ten

The Chicco Fit4 4-In-1 Convertible Car Seat, designed to deliver premier child fit and comfort at each unique stage, makes it easy to correctly secure your child from birth through big kid booster. Trusted, easy-to-use installation and safety features unique to Chicco combine with an innovative 4-Stage FitKit System, for ultimate convenience and peace of mind as your baby grows to age ten.

One Car Seat – 4 Stages to Grow

The 4-Stage FitKit System provides optimal fit and comfort through multi-staged construction and easy-to-remove layers, providing more room to grow through each unique stage. Combined with a 10-position easy-adjust headrest and 9 recline positions, your child will be riding in comfort as they grow, correctly secured in each stage:

Easiest All-in-One to Install Correctly

Chicco-exclusive installation features including ReclineSure leveling system, RideRight bubble levels, force-multiplying SuperCinch Latch tightener and LockSure belt-tightening system combine to make Fit4 the easiest all-in-one car seat to install correctly. Slim design and space-saving CupFolders make Fit4 easy to fit and secure inside your vehicle.

Protection at Every Stage

DuoGuard provides two layers of protection with a steel-reinforced frame and EPS energy-absorbing foam that surround the head and torso throughout every stage. A 10-position headrest adjusts in height simultaneously with the 5-point harness to accommodate maximum growth, for best in class protection from birth through booster.

Scan the QR Code on the side of the car seat  for quick and easy stage transition instructions 


The best FIT from day 1 to year 10 – for peace of mind and convenience from birth to booster
4-stage FitKit System includes infant positioner, toddler pad, FitKit core and deluxe shoulder pad
9-position ReclineSure leveling system
Best in class 10-position headrest
SuperCinch Latch tightener
DuoGuard head & torso protection
Steel-reinforced frame
RideRight bubble levels
LockSure steel-reinforced seat belt locking system
Slim design and space-saving CupFolders with push-button removal
Machine washable fabrics
Easy access QR code and transition guide


The Fit4 is designed for children between 4-100 lbs. and up to 57" tall.


Assembled Dimensions (L x W x H): 22" x 19" x 27"
Assembled Product Weight: 26 lbs
Harness Mode - Rear-Facing: 4-40 lbs
Harness Mode - Forward-Facing: 25-65 lbs
Booster Mode - Harness + Booster: 40-100 lbs
Booster Mode - Backless: n/a
Rear-Facing Child Max Height Capacity: 43 in
Forward-Facing Child Max Height Capacity: 54 in
Booster Child Height Capacity: 38-57 in
Latch: SuperCinch
Seat Belt Installation: LockSure
Recline Postions: 9
Product Weight: 26 lbs
Product Total Width: 19 in
Product Total Height: 27 in (fully upright)
Product Depth (Footprint): 31 in (fully reclined)
Max Harness Slot Height: 18.5 in
Total Belt-Positioning Clip Height: 21 in
Product Interior Width (Shoulder): 14 in
Product Interior Width (Hips): 12 in
Product Interior Seat Depth: 14.5 in
Product Max Seated Height: 29 in
Height Adjust Positions: 10
Crotch Positions: 2


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