Carseat Experts Please Come In

carryon23

Quick question  - I have an almost 4yo DD who will not meet the weight requirement in our state to switch to a booster seat. 
I currently have 2 Britax Marathon 70 seats (one for DD and one for my 19 month old DS).
I have #3 arriving in September.

I want to purchase another convertible seat with some amazon gift cards so I have 3 when #3 arrives (I want to be ready when he/she outgrows the infant seat). Both of my Britax seats have several years before they expire. 

What would you recommend for my almost 4yo DD? I want something that will convert to a booster when it is time.  I do not want to have to buy her another seat.  I have been looking at the Diono Radian RXT.  Advice/thoughts?? Thanks!

Rosebud2587

I would get a combination seat for your oldest. Something like a Harmony Defender, Evenflo SecureKid, Graco Nautilus, or Britax Pioneer 70 or Britax Frontier 90.

The Diono is a great seat but the booster function is outgrown at about the same time that the harness is outgrown.

carryon23

Thank you! I just don't want to have to get another seat.  I have also been looking at the Britax Frontier 90.  That is what we will most likely get!

LittleApple

I also suggest the Britax Frontier 90.  I have two for my 5 and 3 year old.  The seat belt install is the best thing about it!  The no harness adjust is also nice.  Worth it!

LittleFish1

would ask on Car Seats for the littles (facebook group). My LO recently went into a convertible so am fairly blissfully ignorant on the booster/5point harness/something else front. Here's a link to the reccomended seats from Car Seats for the Littles. They explain pros & cons of each of their reccomended seats along with giving stats about size they will fit.

csftl.org/recommended-seats/