CDNTech
Senior Community Member
*Updated with Nautilus pics!* Pictures still taken in same vehicle (2008 Dodge Grand Caravan Swivel n' Go - Driver's side captains chair) and boys torso measurements have not changed.
We are constantly being asked which seat will last the longest and trying to measure slot height. Slot height is really subjective to how the seat actually fits *installed* in the vehicle *with* a child in it.
So today, I went out and installed the 5 (6 now with the Update
) most popular Canadian seats and used the same two models in the exact same vehicle position.
Here are the results...
From tallest to shortest...
1. Britax Frontier
2. Graco Nautilus
3. Sunshine Kids Radian
4 & 5. Compass/First Years TruFit & Evenflo Triumph Advance
6. Britax Marathon
Model #1
Aiden is 6.5 years old, 40lbs, 46.5" tall, with a 16.25" torso.
Frontier... in top slots with about 1.5" to grow
Nautilus... in top slots with about 1" to grow
Radian... in top slots with about .75" to grow
TruFit... just over top slots (outgrown)
Triumph Advance... just over top slots (outgrown)
Marathon... over top slots (outgrown)
Model #2
Mikkel is 29lbs, 38.5", with a 13.75" torso.
Frontier... 4th notch from the top slots with at least 4" of growing room
Nautilus... even with 2nd from top slots with about 3.5" of growing room
Radian... even with 2nd from top slots with about 3" of growing room
TruFit... even with 2nd from top slots with about 2" of growing room
Triumph Advance... about 2" of growing room (to the top harness setting - slit in cover goes higher)
Marathon... top slots with about 1.5" of growing room
Note: Some of the pictures are slightly misleading due to covers shifting/angle of picture/ect. I've included which slot they are on and how much growing room they have left so that you have a more accurate idea of how the seat really fits (rather than just going by picture alone).
To those who already saw the original post... sorry, just clued in that this probably would have been better as an article for easy finding later.
We are constantly being asked which seat will last the longest and trying to measure slot height. Slot height is really subjective to how the seat actually fits *installed* in the vehicle *with* a child in it.
So today, I went out and installed the 5 (6 now with the Update
Here are the results...
From tallest to shortest...
1. Britax Frontier
2. Graco Nautilus
3. Sunshine Kids Radian
4 & 5. Compass/First Years TruFit & Evenflo Triumph Advance
6. Britax Marathon
Model #1
Aiden is 6.5 years old, 40lbs, 46.5" tall, with a 16.25" torso.
Frontier... in top slots with about 1.5" to grow

Nautilus... in top slots with about 1" to grow

Radian... in top slots with about .75" to grow

TruFit... just over top slots (outgrown)

Triumph Advance... just over top slots (outgrown)

Marathon... over top slots (outgrown)

Model #2
Mikkel is 29lbs, 38.5", with a 13.75" torso.
Frontier... 4th notch from the top slots with at least 4" of growing room


Nautilus... even with 2nd from top slots with about 3.5" of growing room


Radian... even with 2nd from top slots with about 3" of growing room

TruFit... even with 2nd from top slots with about 2" of growing room

Triumph Advance... about 2" of growing room (to the top harness setting - slit in cover goes higher)

Marathon... top slots with about 1.5" of growing room

Note: Some of the pictures are slightly misleading due to covers shifting/angle of picture/ect. I've included which slot they are on and how much growing room they have left so that you have a more accurate idea of how the seat really fits (rather than just going by picture alone).
To those who already saw the original post... sorry, just clued in that this probably would have been better as an article for easy finding later.
Last edited: