Searching for the differences between Britax Marathon ClickTight and Diono Radian R120 then you are on the right page, the table below compares the specifications of each item.
Britax Marathon ClickTight vs Diono Radian R120

Britax Marathon ClickTight

Diono Radian R120

Spec Comparison of Britax Marathon ClickTight and Diono Radian R120

Britax Marathon ClickTight Diono Radian R120
Our rating: Our rating:
Type
Convertible Car Seat All-In-One Convertible Car Seat
Color Options
Cowmooflage, Oasis, Twilight, Ollie, Rio, Verve, Vibe Twilight, 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″
13″
Inside Seat Height
27″
External Widest Point
17.5″
17″
Type of Harness
5 point 5 points,energy absorbing EPS foam and provide excellent side impact protection
Lowest Harness Position
7.5″
10.5″
Highest Harness Position
17.5″
17.”
Expiration Date
10 years 8 years as harness: 10 years as booster
Car Seat Weight
28.5 lbs
26 lbs
Car Seat Height
235.”
28.5″
Car Seat Width
18.5″
17″
Car Seat Depth
23″
16″
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
  • Grows with your child: rear-facing from 5-45 lbs., forward-facing from 20-80 lbs. (up to 57″) in a 5-point harness, and booster mode up to 120 lbs.
  • Aluminum reinforced sides, energy absorbing EPS foam and Safe Stop harness system for additional safety
  • Infant body support cushions and memory foam for added comfort
  • Folds flat for travel and fits 3 across in most mid-sized vehicles, perfect for growing families

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    Britax Marathon ClickTight vs Diono Radian R120

    Britax Marathon ClickTight vs Diono Radian R120