Looking for a Britax Roundabout G4.1 vs Diono Radian RXT comparison? The table below compares the specifications of each item.
Britax Roundabout G4.1 vs Diono Radian RXT

Britax Roundabout G4.1

Diono Radian RXT

Spec Comparison of Britax Roundabout G4.1 and Diono Radian RXT

Britax Roundabout G4.1 Diono Radian RXT
Our rating: Our rating:
Type
Convertible Car Seat Convertible Car Seat
Color Options
Dash, Luna, Marthon, Silverlake 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
20-55 lbs 20-80 lbs
Child Standing Height
46″ or less
44″ or less
Child Seated Shoulder Height Min – Rear Facing
9″
Child Seated Shoulder Height Max – Rear Facing
15.75″
Child Seated Shoulder Height – Forward Facing
12 – 15.75″
Shoulder Width
13″
14″
Inside Hip Width
11″
Inside Seat Depth
11″
Inside Seat Height
23″
External Widest Point
19″
17″
Type of Harness
5 point No Re-thread Harness 5-point energy-absorbing harness
Lowest Harness Position
9″
Highest Harness Position
17.5″
17.5″
Expiration Date
7 years 10 years
Car Seat Weight
17.6 lbs
22 lbs
Car Seat Height
26″
28.5″
Car Seat Width
18.5″
17″
Car Seat Depth
21″
Features
  • Safe cell impact protection is an integrated system of safety components that work together to protect your child beyond the federal safety standards, this includes our impact absorbing base and complete side impact protection plus
  • Safecell complete side impact protection surrounds your child in a deep protective shell designed to absorb crash forces and shield your child from debris
  • Tangle-free, 5-point harness prevents the straps from twisting making it easier to load your child into the seat and ensuring a safer ride
  • 3 recline positions for your child’s comfort and safety
  • Quick-adjust 2-position buckle allows you to easily move the buckle outward for a comfortable, secure fit as your child grows
  • 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 Roundabout G4.1 vs Diono Radian RXT

    Britax Roundabout G4.1 vs Diono Radian RXT