Difference between this and Radian 3 RXT?

Hi Shannon, Thank you for your enquiry, the main differences between the 3R & the 3RXT is that the 3RXT has higher Rear facing & Forward facing limits and it goes to booster mode to 54kgs it also has steel reinforced head wings and a newborn insert. it has a higher level of safety protection. We hope this helps.  For further information on this or any of our other products available, if you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder. Here you can find contact details for your nearest Baby On The Move Store where one of our team experts will be happy to assist you in your product search and help answer any further questions you may have. We hope this has helped with your query.