If the Graco Size4me and Graco Milestone are the contenders in a competition, the odds of winning will be greater for the Milestone. Yet, Size4Me 65 is a worthy opponent because it also has strong points that make it stand against its rival. Be sure to read further below to see how these nominees perform in the search for the better convertible car seat.


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Graco Size4Me*


Graco Milestone*

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Ideal Use


Graco Size4Me Graco Milestone
Rear-Facing Weight: 4 to 40 pounds 5 to 40 pounds
Rear-Facing Height Limit: 1-inch rule the head must be at least 1-inch below the handle
Forward-Facing Weight: 20 to 65 pounds
Forward-Facing Height Limit: Up to 49 inches 27 to 49 inches
High Back Booster Weight Limit: N/A 30 to 100 pounds
High Back Booster Height Limit: N/A 38 to 57 inches


  • Rear-Facing and Forward-Facing

The rear-facing and forward-facing capacities of these 2 car seats are almost the same, with the notable difference of Graco Size4Me 65 having a minimum rear-facing requirement of 4 pounds. Nonetheless, most parents who have reviewed them stated that the minimum weight that either seat can snugly accommodate is for an average, full-term newborn of about 7 pounds. You might need to look for a dedicated infant seat to use with smaller babies like preemies. Still, either car seat can be used well in rear-facing as long as the 1-inch rule is followed.

  • Belt Positioning Booster

Perhaps in most situations, parents will choose Graco Milestone over its Graco cousin since it has a belt positioning booster mode. This mode might not be as great as that of other car seats, but it can prolong the years through which the seat can be of service to a particular child. For instance, using the height and weight values of children here, the 49 inches height limit of Size4Me 65 can only make it useful until the age of about 7 years. Maximizing the Milestone’s belt positioning booster can make it a useful child restraint until the same child is 11 years old, but parents must keep in mind that the product’s lifespan is only 10 years. Using the car seat beyond this would jeopardize the child’s safety.


Good All-In-One Car Seats


Will It Fit In My Car? 


Graco Size4Me Graco Milestone
Width 18.5 inches 17 inches
Height 23.43 inches 18.88 inches
Depth/Length 22.05 inches 24 inches


  • 3-Across

Graco Size4Me 65 may fit 3-across if you can find the proper configuration and if you will use it with other truly narrow child restraints.

Given that the width of the Graco Milestone is 17 inches and provided that the vehicle in which it will be installed is wide enough (compact cars are 48 inches wide; mid-sized car is 52-56 inches; minivan is 63.5 inches) and there are available seat belts/LATCH, then 3 of the Milestone seat will readily fit 3-across or could be used alongside other slim and narrow car seats like Diono Radian 3RXT. A parent reviewer said that she installed 3 Milestones (2 forward-facing at the sides and 1 rear-facing at the center) in her Toyota 4Runner. Another claimed that she placed it alongside an infant carrier and a Graco Nautilus forward-facing in her Ford Edge.

  • Fit In Vehicles

Graco Size4Me 65, according to a father, has a great size rear-facing and forward-facing in his compact car, which is a Hyundai Elantra. There was enough room for the passengers on both sides and the front seats need not be pushed closer to the dashboard. Another parent with a Kia Forte said that its back seat dips, making it challenging to install car seats, but she found no problems putting her child’s Size4Me 65 at level.  This was also installed inside a 2-door 2010 Chevy Camaro and the mother said that it fit better than her son’s infant seat. It was a tight squeeze when installed rear-facing in a Chevrolet Suburban, as well as in a 2015 Ram 1500 Quad cab. Other car seats where the Size4Me was installed pretty well include 2012 and 2016 model of Mazda 3, Jeep Cherokee and Kia Soul.

When placed inside a Toyota Highlander, Milestone was found to have left enough space for other passengers. The same also applied when it was mounted in a 2014 VW Jetta, Ford F150 and Jeep Cherokee. Its size was perfect in a Subaru Outback, but a tight fit in a Honda Civic.


Good Two Way Car Seats




  Graco Size4Me Graco Milestone
Do I need to use a pool noodle/rolled towel? Yes, but the manuals mention only rolled towels
Easy To Install Rear-Facing? Yes No
Easy To Install Forward-Facing? Yes No
Easy To Uninstall? Yes
Recline Position 3 4
Lower Anchor Weight Limit 45 pounds


  • Rolled Towels/Pool Noodle

Rolled towels or pool noodles are usually placed under car seats so they can be installed according to the desired or necessary recline position. Yet, be reminded that the respective manuals of these Graco car seats only mention the use of rolled towels. 

  • Vehicle Seatbelt 

Neither car seat has a belt lock-off feature that will help keep the seat belt in place. 


Both Graco car seats are equipped with InRight LATCH system, which means that its connectors are the premium push-in type that is easier to use than the standard j-hook. 

  • Recline

Based on the number of available recline positions, Milestone is superior to Size4Me 65 (4 vs 3). However,  if you would spend time reading reviews, you might be surprised that some parents find the 3 recline positions of Size4Me 65 to be adequate since they did not need to use aftermarket products like towel or pool noodle. Both seats have ball level indicators.


Graco Size4Me 65 Convertible Car Seat, Featuring Rapid Remove Machine Washable Seat Cover, Tansy
Price: --
(As of: 2022/11/09 6:44 pm - Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on https://www.amazon.com/ at the time of purchase will apply to the purchase of this product.
0 new0 used
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Graco Size4Me Graco Milestone
Country Of Origin: China
Steel Frame: No Yes
Five-Point Harness? Yes
Side Impact Tested: Yes
Approved For Airplane Use: Yes   
Easy To Buckle And Unbuckle? No Yes


  • Frame Construction

The table above shows us that the main difference between these car seat cousins is their frame construction since Graco Milestone has a steel frame while Size4Me 65 doesn’t have. 

  • Safety Testimonials

A parent shared that the Graco Size4Me 65 held up quite well during a serious accident so her child walked away from the incident with no injuries at all. Another mother also stated that she and her daughters went through a very serious accident that caused their vehicle to roll over. Nonetheless, the car seat remained firmly mounted on the vehicle seat and safely restrained her youngest daughter.

A father was very thankful to the Graco Milestone and for being able to let his child sit rear-facing longer. Both factors contributed in keeping his son safe and uninjured despite their car having rolled over 5 times after hitting a guard rail.


Graco Milestone 3 in 1 Car Seat | Infant to Toddler Car Seat, Gotham
Price: $299.99
(As of: 2022/11/09 2:57 pm - Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on https://www.amazon.com/ at the time of purchase will apply to the purchase of this product.
1 new from $299.990 used
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The Seat


Graco Size4Me Graco Milestone
Is The Material Breathable? No
Seat Weight: 19.2 pounds 19.4 pounds
Machine Washable Cover? Yes
Roomy? Yes
No-Rethread Harness? Yes
Comes With An Infant Body Support? Yes, removable head and body support
Easy To Remove Cover? Yes
Expiration 7 Years 10 Years
Comes With A Cup Holder? Yes
Shoulder Harness Has Pads? Yes
# Of Crotch Strap Positions: 2 3


  • Cover

Neither car seat has considerably breathable cover. Although both have machine-washable covers, I think that Size4Me 65 involves less hassle when the cover already needs to be removed from the frame and washed. The cover of Graco Size4Me 65 can be removed even without uninstalling the car seat.

  • Usable Years

The 10-year lifespan of Graco Milestone is not just longer than the lifespan of Size4Me, but this is also commensurate to the intended usage of the child restraint. As mentioned above, a child could make maximized use of its rear-facing, forward-facing and booster modes in a span of 10 years. While a child/s body weight or height could still be accommodated by the car seat, be careful not to use it beyond its lifespan.

  • Harness

Both are equipped with a “Simply Safe Adjust Harness System,” but Milestone has more headrest positions than Size4Me 65. The additional headrest positions will allow bigger and older kids to sit properly on a Milestone car seat installed in its belt positioning mode. Moreover, it has 2014 IIHS Best Bet rating for booster fit wherein children 4-8 years old will have a snug and secure fit in almost any vehicle.


Check Out The Graco Milestone Colors*

Check Out The Graco Size4Me Colors*


Compare The Price


Graco Size4Me

Graco Milestone

Check The Latest Price*

Check The Latest Price*




There is an approximately USD 50 price difference between the Graco Size4me and Graco Milestone. The Size4Me is cheaper.

The Graco Size4Me, albeit a possible defeat from the better Graco car seat, has some good points to offer and thus presents itself as a worthy convertible for some.

  • It is easier to install in rear-facing and forward-facing modes.
  • There is an available version that has a “Rapid Remove Cover” for easily removing the cover for washing.

Graco Milestone would be hailed as a winner if it is ever in a competition with Graco Size45Me 65 and this could be due to the following reasons.

  • It has a belt positioning booster mode.
  • Its narrow width will enable it to readily fit 3-across.
  • It has more recline positions.
  • It has a steel frame.
  • The 5-point harness is easier to buckle and unbuckle.
  • It has a longer expiration date.
  • It has more crotch strap positions.

Do You Need More Help To Decide Between

The Graco Size4me And Graco Milestone?

Read My Graco Size4Me Review

See My Graco Milestone Review

What do you think? 

I’d love to know your thoughts in the comments section below!








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