10 Best All In One Car Seat of December 2025

• Built to grow: The 3 in 1 car seat built to grow for extended use through 3 stages: Rear facing 5 to 40 pounds, forward facing 22 to 65 pounds, and belt positioning booster 40 to 100 pounds
• Side impact protection: The grow and go’s side impact protection helps keep your child safe
• Easy in, easy out: Harness holders keep the harness in an open position so it is easy to get your child in and out of the seat. Rear facing height is 19 to 40 inches. Forward facing height is 29 to 52 inches
• Quickfit harness: With the quickfit harness you can easily adjust both the harness and headrest in one simple step
• Wash and dry: Machine washable and dryer safe seat pad features snaps that make it simple to take off of the seat; No fuss for truly easy cleaning
• One click UAS

Safety 1st

• Narrow design saves space
• All-in-one car seat offers 3 ways to ride for children 5-100 lbs.: rear-facing, forward-facing harness, and booster car seat
• SecureStopTM Anti-Rebound Bar provides a 45% reduction in rearward movement of the car seat during a frontal collision using the FMVSS 213 crash pulse (anti-rebound bar should be used rear-facing only)
• 10-position adjustable headrest moves together with the harness to accommodate your growing child, no rethreading required
• Convertible car seat installs easily using push-button LATCH

Baby Jogger

• 3 Modes in 1 Seat: Accommodates children from 5 - 110 lbs - Rear Facing, Forward-Facing Harness and Belt-Positioning Booster
• 5-point harness tested to a 65 lb weight limit: Allows longer harness use until child is ready for belt-positioning booster
• No Rethread Harness: easy-to-slide harness straps enable proper fit during each ride and as child grows- without uninstalling the car seat
• Adjustable Head Rest: One-hand adjustable head rest grows with your child
• Dual Cup Holders: Two built-in cup holders keep drinks and snacks within reach - allows driver to stay focused on the road

Evenflo

• 4-in-1 seat grows with your child, so you can enjoy 10 years of use, from 4 - 120 lb Extend2Fit 4-position extension panel provides 5" additional leg room
• Up to 50 lb rear-facing allowing your child to safely ride rear-facing longer plush inserts keep your child comfortable washable seat cover is easy to remove without removing the harness
• Simply Safe Adjust Harness System headrest and Harness adjust together one-hand, 10-position adjustable headrest easily adapts for your growing child.Do not use bleach
• In Right LATCH system for an easy, one-second LATCH attachment integrated belt lock-off for easy vehicle seat belt installation easy-to-read level indicator helps eliminate rear-facing installation guesswork
• 2 integrated cup holders keeps your child's drinks or snacks close at hand integrated harness storage compartment holds unused harness straps while in the belt positioning booster mode. Harness straps may be spot cleaned
• Graco ProtectPlus Engineered: a combination of the most rigorous crash tests that helps protect your child in frontal, side, rear & rollover crashes; additional testing based on the New Car Assessment Program and for extreme car interior temperatures

Graco

• Infant + Convertible + Booster: Rear-Facing Harness, Forward-Facing Harness and Belt-Positioning Booster provides a safe and secure ride for 10 years of use
• Grows with Child to 120lbs: The only seat you’ll ever need, this seat is tested in high back booster mode up to 120 lbs
• Rear Facing Longer- to 50 lbs: Adjusts to multiple positions, allowing your toddler to stay rear-facing longer, beyond 2 years, without the need to extend the seat or cramp other passengers
• Angled for Comfort and Safety: Comfortably angles child to help minimize head slump and help keep airway open, for a custom, cradled fit
• 10 Total Positions: Allow you to position the seat for an accurate fit for a growing child

Evenflo

• 3 in 1 seating system: Rear facing, from 4-40 pounds; Forward facing to 65 pounds; And up to 100 pounds in booster mode
• Side impact protection with cell protects your child's head where it's needed most in a side impact crash
• In and out harness holders keep straps out of the way when buckling
• 1 click latch system, with easy click-in for better installation
• Quick fit shoulder harness automatically raises the harness and headrest height

Maxi-Cosi

• 4 seats in 1: 4-in-1 seat gives you 10 years of use--it seamlessly transforms from rear-facing harness (5-40 lb), two forward-facing harness (22-65 lb), to a highback booster (40-100 lb), to a backless booster (40-110 lb).
• Simply Safe Adjust Harness System: Adjust the height of your harness and headrest to 10 positions in one motion to ensure that your child is always properly secured.Do not use bleach
• 10-position Headrest: One-hand, 10-position adjustable headrest is easy to use and grows to properly fit your growing child.
• 6-position Recline: Helps keep your growing child comfy on your many journeys together.
• LATCH Equipped: For an easy installation.
• Graco ProtectPlus Engineered: a combination of the most rigorous crash tests that helps protect your child in front, side, rear & rollover crashes; additional testing based on the New Car Assessment Program and for extreme car interior temperatures

GRACO

• 10 years of use: New one4life convertible to booster car seat grows with your child from 5 to 120 pounds & up to 63 inch tall
• Install confidently: With ClickTight installation, you'll know it's right in 3 easy steps
• One4life: Converts from rear facing infant car seat, to forward facing 5 point harness, to high back belt positioning booster
• Britax safety: High strength steel frame, crumple zone help absorb crash energy and patented v-shaped tether
• Full body protection: 2 layers of side impact protection surround the head, neck & torso

BRITAX

• 4 in 1 car seat gives you 10 years of use: seamlessly transforms from rear facing harness car seat (4 40 pounds), to forward facing harness car seat (22 65 pounds), to high back belt positioning booster (40 100 pounds), to backless belt positioning booster (40 120 pounds)
• Graco protect Plus engineered helps to protect Your little one in frontal, side, rear and rollover crashes
• Simply safe adjust harness system adjusts the height of your harness and headrest to 10 positions in one motion to ensure that Your child is always properly secured.Do not use bleach
• 6 position recline helps keep your growing child comfy on Your many journeys together
• The Graco exclusive In right Latch attachment provides an easy, one second attachment with an audible click to help ensure secure installation
• Integrated belt lock off for easy vehicle seat belt installation
• Machine washable, rapid remove cover removes in 60 seconds without uninstalling the seat for easy cleaning
• Care: metal and plastic parts may be cleaned with mild soap and cool water

Graco

• Designed to deliver premier child fit and comfort at each unique stage, Fit4 makes it easy to correctly secure your child from birth through big kid booster for ultimate comfort, convenience and peace of mind as your baby grows to age ten
• 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
• Easiest all-in-one car seat to install correctly, thanks to Chicco-exclusive installation features including ReclineSure leveling system, RideRight bubble levels, force-multiplying SuperCinch LATCH tightener and LockSure belt-tightening system
• DuoGuard offers 2 layers of protection with a steel-reinforced frame and EPS energy-absorbing foam that surround the head and torso, while a best-in-class 10-position headrest accommodates maximum growth
• As your child grows, scan the QR Code on the side of the car seat or visit Fit4Stages.com for quick and easy stage transition instructions – online help from Chicco there to help guide you every step of the way

Chicco