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Axkid One 3

The Axkid One 3 rear-faces up to 65 lb, is 17.3 in wide, and weighs 22 lb, per Axkid. A rear-facing-only seat built to keep children rear-facing from about 11 lb (5 lb with the separate infant insert) up to 65 lb and 49 in. It is a large, heavy toddler-and-up seat rather than a portable infant carrier.

  • $899List price
  • 65 lbRear-facing to
  • 22 lbSeat weight
  • 17.32 inWidth
See it on Axkid's site

All convertible car seats

One 3: key facts

  • The Axkid One 3 rear-faces from 11 to 65 lb and up to 49 in tall, per Axkid.
  • It installs with rigid LATCH or seat belt.
  • It's 17.3 in wide at the widest point and weighs 22 lb.

From Axkid's published specs. Always follow the limits on your seat's labels.

How the One 3 stacks up

Against the 39 convertible car seats we track. The shaded band is where the middle half of them fall; the dot is this one.

Rear-facing limit65 lbHighest rear-facing limit of 38 convertible car seats

Above the typical range for convertible car seats (40 lb to 50 lb).

This one
35 lbmiddle 40 lb65 lb
Width17.3 in13th narrowest of 28

Within the typical range for convertible car seats (17 in to 18.9 in).

This one
14.5 inmiddle 17.8 in23.5 in
Weight22 lb8th lightest of 25

Within the typical range for convertible car seats (21.6 lb to 27.9 lb).

This one
8 lbmiddle 25.2 lb31.3 lb
Price$89936th lowest price of 37

Above the typical range for convertible car seats ($129.99 to $499.99).

This one
$59.99middle $399.99$990

What sets the One 3 apart

Measured against the 39 convertible car seats we compare, from each maker's published specs.

  • Highest rear-facing limitof the 38 convertible car seats with it published: 65 lb
  • Load leg3 of the 38 convertible car seats with this listed have it
  • Width: 17.3 inin the middle half of the 28 convertible car seats that publish it (17 in to 18.9 in)
  • Weight: 22 lbin the middle half of the 25 convertible car seats that publish it (21.6 lb to 27.9 lb)

Next to its closest matches

  • Babyark SmartNext to it, the One 3 is 15 lb higher rear-facing limit; 0.3 in wider; 5 lb lighter.
  • UPPAbaby RoveNext to it, the One 3 is 15 lb higher rear-facing limit; 1.5 in narrower; 3.2 lb lighter; has load leg (the Rove doesn't).
  • Babyark ClassicNext to it, the One 3 is 15 lb higher rear-facing limit; 0.3 in wider; 5 lb lighter.

Listed features

  • Very high rear-facing weight and height limits
  • Rigid LATCH installation

Worth checking

  • Heavy for a seat
  • Not a carrier; does not click into strollers
  • List price $899

Where to buy the One 3

Prices and availability change. We may earn a commission from some links.

good to know
  • New for 2026. Some specs may not be published yet.
  • Check for recalls: Search the agency's recall list with the model number and date code from the label: NHTSA recall search.
  • Car seat use and installation: see NHTSA's car seat page, which also lists free car seat inspection by certified technicians. Check the label and the maker's instructions, and ask your pediatrician about your child.

Full specs

Axkid One 3
TypeConvertible
List price$899
Rear-facing weight11–65 lb
Rear-facing heightUp to 49 in
Seat weight22 lb
Width17.32 in
Installationrigid LATCH, seat belt
Load legYes
RotatesNo

Compare the One 3 with

How each closest rival differs from the One 3, from the makers' specs.

  • BabyarkSmartrear-facing to 50 lbforward-facing to 65 lb$990
    • 15 lb lower rear-facing limit
    • 0.3 in narrower
    • 5 lb heavier
    Compare side by side
  • UPPAbabyRoverear-facing to 50 lbforward-facing to 65 lb
    • 15 lb lower rear-facing limit
    • 1.5 in wider
    • 3.2 lb heavier
    Compare side by side
  • BabyarkClassicrear-facing to 50 lbforward-facing to 65 lb$790
    • 15 lb lower rear-facing limit
    • 0.3 in narrower
    • 5 lb heavier
    Compare side by side
  • NunaREVV maxxrear-facing to 40 lbforward-facing to 65 lb$800
    • 25 lb lower rear-facing limit
    • 6.2 in wider
    • 8.6 lb heavier
    Compare side by side
Ask the meadow

One 3: questions answered

From Axkid's published specs, last checked 2026-11-06.

Does the Axkid One 3 rear-face longer than other convertible seats?

Yes. Its 65 lb rear-facing limit is the highest of the 50 convertible seats we track.

Will the Axkid One 3 fit three across or in a small car?

It's narrower than 65% of the convertible seats we track, at 17.3 in. The narrowest is the WAYB Pico at 14.5 in. Fit depends on your vehicle; check each seat's manual and your vehicle manual. Car seat use and installation: see NHTSA's car seat page, which also lists free car seat inspection by certified technicians. Check the label and the maker's instructions, and ask your pediatrician about your child.

One 3 or Smart: what's different?

By the makers' specs, the Smart has an anti-rebound bar; the Smart has no added flame retardants (maker's claim); the One 3 lists for $91 less. See every spec side by side.

Is it OK to buy a used One 3?

NHTSA publishes guidance on used car seats on its car seat page. Check the label and the maker's instructions, and ask your pediatrician about your child.

Still wondering? Write to us at hello@cribpicks.com and we'll look it up.

More convertible car seats

  • BritaxAdvocate ClickTightrear-facing to 40 lbforward-facing to 65 lb
  • ClekFoonfrear-facing to 50 lbforward-facing to 65 lb$649.99
  • RömerVenirear-facing to 50 lbforward-facing to 65 lb$599.99
  • Baby JoggerCity Turnrear-facing to 50 lbforward-facing to 65 lb$579.99
  • NunaRAVA nextrear-facing to 50 lbforward-facing to 65 lb$525
  • ClekFllorear-facing to 50 lbforward-facing to 65 lb$499.99

Where these specs come from

Last checked 2026-11-06. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.