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

Britax Marathon ClickTight

Diono Rainier

Spec Comparison of Britax Marathon ClickTight and Diono Rainier

Britax Marathon ClickTight Diono Rainier
Our rating: Our rating:
Type
Convertible Car Seat All-In-One Convertible Car Seat
Color Options
Cowmooflage, Oasis, Twilight, Ollie, Rio, Verve, Vibe Black forest, Glacier, Midnight black, Orchid, Black mist, Black plum
Child Weight Min – Rear Facing
5 lbs
5 lbs
Child Weight Max- Rear Facing
40 lbs
50 lbs
Child Weight Max- Forward Facing
20-65 lbs 20-90 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″
12″
Inside Seat Height
27″
External Widest Point
17.5″
Type of Harness
5 point Safe Stop energy absorbing harness system
Lowest Harness Position
7.5″
8″
Highest Harness Position
17.5″
16.5″
Expiration Date
10 years 8 years as harness: 12 years as booster
Car Seat Weight
28.5 lbs
28.4 lbs
Car Seat Height
235.”
28.5″
Car Seat Width
18.5″
18.5″
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 Rainier is the ultimate in car seat safety, made with a full steel frame for unmatched protection and durability
  • 12-position adjustable head support and reinforced extra-deep side walls with energy-absorbing EPS foam surround your child’s head and body for maximum side impact protection
  • Grows with your child from birth to booster: rear-facing from 5-50 lbs., forward-facing from 20-90 lbs. in a five-point harness, and booster mode from 50-120 lbs. (up to 57″ tall)
  • Space-saving design allows extra room for passengers while providing spacious interior for your child
  • New cover designs inspired by European fashion, featuring premium plush fabric for ultimate comfort, better longevity and durability
  • Steel alloy frame and aluminum reinforced sides
  • Adjustable head support, reinforced for complete side impact safety

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    Britax Marathon ClickTight vs Diono Rainier

    Britax Marathon ClickTight vs Diono Rainier