Coreplex / Product passport

onBoard™ Slide 6-in-1 Travel System with onBoard™ Slide Infant Car Seat and SafetySlide™ Base

Source: Safety 1st · checked Oct 16, 2026
In stock

With six different strolling options for parents on the go, the Safety 1st onBoard™ Slide 6-in-1 Travel System with SafetySlide™ Base is the perfect lightweight car seat and stroller combo for your family. This travel system includes the onBoard™ Slide Infant Car Seat featuring SafetySlide™ Base. The innovative design of the car seat’s base makes it easier to get baby in and out of the car— even from the middle seat. Simply slide your baby toward you, lift, and go. No more back strain and head bumps. The SecureTech™ red-to-green indicators on the seat’s base allow you to see when your base is locked in place when using the SafetySlide™ feature. Plus, enjoy quick, easy installation every time without having to tighten the connectors manually—by easily attaching the base to the vehicle seat in just seconds with the rigid LATCH connectors. The modular stroller features 6 ways to stroll and can be used as an infant car seat carrier, lie-flat baby carriage, and toddler stroller—all 3 modes are reversible and can be parent-facing or forward-facing. This compact stroller fits children up to 50 lbs. and 45" and is super lightweight with an aluminum frame. The all-wheel suspension, adjustable footrest, and quilted seat provide a more comfortable ride for baby, while parents enjoy a one-hand telescoping handle with faux-leather trim and a removable bumper bar for easy in and out. The oversized canopy provides extra coverage and the mesh peek-a-boo window lets you get a quick look at your child. The easy-to-fold stroller folds flat with removable back wheels for compact storage and includes lockable front swivel wheels and linked brakes. Connecting the car seat to the stroller frame is easy, too. The ultra-lightweight car seat design at just under 8 lbs. makes it simple to carry. The 4 harness heights are designed to give your child a better fit from 4–30 lbs. and less than 32". The harness adjusts easily from the front of the seat with a simple pull to securely fit your child. The buckle adjusts in two ways so that you can customize the length and the buckle’s position on your child. Since every car is different, you can also adjust the base height for the right fit to your car. When using the vehicle belt, car seat installation is simplified with SecureTech™—Safety 1st’s innovative technology that solves the most common installation problem 7 out of 10 parents unknowingly have: loose vehicle belt tension. The red-to-green visual indicators show when the seat belt has tension. Your baby will be nice and comfortable relaxing in the soft fabrics and plush padding. Smaller babies get the extra support they need with head and body inserts that can be removed as they grow.

$539.99
Checkout at Safety 1st
Official Safety 1st store. You're buying direct from the brand.
Safety 1st is the only Shopify seller we matched for this exact item today.
4 other sellers list similar Safety 1st items from $305.98.
Color
Rocky Point

The Coreplex take

38 similar car seats compared

This versatile 6-in-1 travel system offers convenient middle-seat access with its sliding base and maintains a mid-range price point within the current market.

  • SafetySlide base technology
  • SecureTech installation indicators
  • Six-in-one modular design
  • Ultra-lightweight aluminum frame

Price

$539.99

Pricier than 23 of 38 similar car seats

Best for

  • Parents needing middle-seat access
  • Families seeking modular strolling
  • Users prioritizing lightweight gear

Worth knowing

  • Mid-priced option compared to similar systems
  • Supports children up to 50 pounds
  • Car seat accommodates children up to 32 pounds
Price & stock
Checked today

Compared with 38 similar car seats from 19 sellers on Shopify, using their listed prices, ratings and specs. The summary is AI-written from the listing and these numbers; confirm details with the seller.

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Details

Key features & specs

  • SafetySlide base allows easy entry and exit from the middle seat, reducing strain and head bumps
  • SecureTech red-to-green indicators provide instant visual confirmation of secure installation
  • Modular system offers six strolling modes, including infant car seat, lie-flat carrier, and toddler stroller
  • Ultra-lightweight aluminum frame and compact fold for easy transport and storage
  • Adjustable harness and base heights ensure a secure, customized fit for every car
Car seat weight
under 8 lbs
Stroller maximum child weight
50 lbs (45 in)
Car seat maximum child weight
Up to 50 lbsAs stated by Safety 1st
Folding mechanism
Compact fold with removable back wheels
Stroller features
Canopy, mesh windows, adjustable handlebar, foldable, storage options
Wheel type
Swivel

Summarized from Shopify’s product catalog. Where Safety 1st states a different figure, we show Safety 1st’s.

Specifications

Color
Rocky Point

Seller description

Features

  • The Safety 1st onBoard™ Slide 6-in-1 Travel System with SafetySlide™ Base is the perfect lightweight car seat and stroller combo
  • Includes the onBoard™ Slide Infant Car Seat featuring SafetySlide™ Base––the innovative design of the base eases back strain and eliminates head bumps, making it easy to get baby in and out of the car—even from the middle seat
  • SafetySlide™ slides out a maximum of just under 8" on either side of your car (distance varies depending on the width of the vehicle’s back seat)
  • Quick, easy car seat installation without having to tighten the connectors manually—you can easily attach the base to the vehicle seat in just seconds with the rigid LATCH connectors
  • SecureTech™ red-to-green indicators on the car seat’s base allow you to see when your base is locked in place when using the SafetySlide™ feature
  • 6 ways to stroll: infant car seat carrier, lie-flat baby carriage, and toddler stroller—all 3 modes are reversible and can be parent- or forward-facing
  • Stroller fits children up to 50 lbs. and 45"
  • Stroller features a lightweight aluminum frame
  • 1-hand telescoping stroller handle that raises up and down with faux-leather trim
  • Adjustable stroller footrest for your growing little one
  • Removable bumper bar with faux-leather trim
  • All-wheel suspension for a smooth ride
  • Quilted toddler seat with plush fabric and detailed stitching
  • Oversized mesh peek-a-boo stroller window for added ventilation
  • Lockable front stroller swivel wheels and linked brakes
  • Easy-to-fold stroller folds flat and has removable back wheels for compact storage
  • Large storage basket for essentials
  • Ultra-lightweight car seat design at just under 8 lbs.
  • Built-in vehicle belt lock-off arm helps you get a secure fit during installation when using the vehicle belt instead of the rigid LATCH connectors
  • Infant car seat fits children from 4–30 lbs. and less than 32"
  • When installing car seat with the vehicle belt, SecureTech™ red-to-green visual indicators show when your seat belt has tension
  • Infant car seat meets federal Side Impact standard
  • Car seat is rigorously crash and side-impact tested to meet safety standards
  • Machine-washable and dryer-safe car seat seat pad
  • Adjustable car seat base for the right fit in your car
  • Car seat is LATCH equipped and airplane ready
  • Car seat is compatible with all Safety 1st modular and traditional strollers to easily become part of a travel system

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Buying & sources

You check out with Safety 1st. Coreplex doesn’t sell or ship this item.

Sources

Facts come from Safety 1st’s listing and Shopify’s product catalog, as stated by them. Anything Coreplex writes is labeled as ours.

Safety 1st listing ↗ · checked Oct 16, 2026

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