Compare the NEW 2020 Diono Convertible Car Seat Lineup + Video!

Compare the new 2019 Diono convertible car seats with this comprehensive guide.


50611 Radian 3R Grey_1
54013 Diono Radian 3RX Blue_1
50012 Radian 3RXT Grey Oyster_1
50305 Rainier 2AX Plum_1
50213 Rainier 2AXT Red_1
Radian 3R Radian 3RX Radian 3RXT Rainier 2AX Rainier 2AXT
Comparable 2017 Model R100 R120 RXT N/A Rainier
Rear-facing weight capacity 5-40 lbs 5-45 lbs 5-45 lbs 5-50 lbs 5-50 lbs
Forward-facing weight capacity 20-65 lbs 20-65 lbs 20-65 lbs 20-65 lbs 20-65 lbs
Booster weight capacity 50-100 lbs 50-120 lbs 50-120 lbs 50-120 lbs
Fit Across 3 across 3 across 3 across 2 across 2 across
Padding Memory Foam Memory Foam + infant support cushion Memory Foam + infant support cushion Memory Foam + infant support cushion Memory Foam + infant support cushion
Head support N/A N/A 12 position adjustable head support Deeper side walls Deeper side walls + 12 position head support
Folds flat for travel and FAA certified
Price $199.99 $249.99 $299.99 $299.99 $349.99+



  1. I am wondering if the head support offered with the 3RXT is worth the spend? Does it make a real difference or if I go with the 3R or 3RX, I can have my mind at ease? I can’t decide!

  2. It really is helpful to have those extra side wings – I personally would recommend the upgrade.

  3. yes, those side wings are nice. SO helpful for sleeping babes… which they always are! haha. I have two rxt’s and was just having the debate with myself the Radian R would suffice for my oldest instead of the RXT, and I opted for the upgrade. it’ll make a big diff for the long road trips I think.

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