Here are the specification differences between Britax Marathon ClickTight and Diono Radian RXT, so take a look at it to choose the right item for you.
Britax Marathon ClickTight vs Diono Radian RXT

Britax Marathon ClickTight

Diono Radian RXT

Spec Comparison of Britax Marathon ClickTight and Diono Radian RXT

Britax Marathon ClickTight Diono Radian RXT
Our rating: Our rating:
Type
Convertible Car Seat Convertible Car Seat
Color Options
Cowmooflage, Oasis, Twilight, Ollie, Rio, Verve, Vibe Blue, Midnight, Shadow, Black scarlet, Black mist, Black plum, Essex
Child Weight Min – Rear Facing
5 lbs
5 lbs
Child Weight Max- Rear Facing
40 lbs
45 lbs
Child Weight Max- Forward Facing
20-65 lbs 20-80 lbs
Child Standing Height
49″ or less
44″ or less
Child Seated Shoulder Height Min – Rear Facing
7.6″
Child Seated Shoulder Height Max – Rear Facing
16.95″
Child Seated Shoulder Height – Forward Facing
12 – 16.95″
Shoulder Width
16″
14″
Inside Hip Width
10″
Inside Seat Depth
12″
Inside Seat Height
27″
External Widest Point
17.5″
17″
Type of Harness
5 point 5-point energy-absorbing harness
Lowest Harness Position
7.5″
9″
Highest Harness Position
17.5″
17.5″
Expiration Date
10 years 10 years
Car Seat Weight
28.5 lbs
22 lbs
Car Seat Height
235.”
28.5″
Car Seat Width
18.5″
17″
Car Seat Depth
23″
Features
  • ClickTight Installation System is the safest and simplest technology on the market: Open the front of the car seat, buckle the seat belt across and click the seat shut: That’s all you need to do for rock-solid installation
  • SafeCell Impact Protection is a safety system including a steel frame, energy-absorbing base, V-shaped tether to minimize seat rotation and staged-release stitches that slow and reduce forward movement during a crash
  • Side impact protection, formed by a deep foam-lined shell, absorbs energy and shields your child from the most dangerous type of collision
  • The Diono Radian family of car seats are the only all-in-one car seats with a full steel frame, making them one of the safest car seats available today
  • Rear facing 5 to 45 pounds. Forward facing 20-80 pounds (up to 57″) in 5-point harness. Booster to 120 pounds
  • Infant body support cushions and memory foam for added comfort
  • Adjustable headrest with reinforced sidewalls. Infant body support insert is tucked under the seat.
  • Lined with EPS foam and energy-absorbing harness system for added safety
  • Folds flat for travel and fits 3 across in mid-sized vehicles

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    Britax Marathon ClickTight vs Diono Radian RXT

    Britax Marathon ClickTight vs Diono Radian RXT