diono vs maxi cosi DIONO Radian 3 RXT All-in-One Convertible Car Seat (2020 Edition)
SKU: 55641902760
diono vs maxi cosi

diono vs maxi cosi DIONO Radian 3 RXT All-in-One Convertible Car Seat (2020 Edition)

Sale price$25.92 Regular price$28.80
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

diono vs maxi cosi DIONO Radian 3 RXT All-in-One Convertible Car Seat (2020 Edition)The Diono radian 3RXT is the original 3 across All in One convertible car seat, trusted by over a million parents to protect their child from birth to booster (5 120 lbs 2. 3 54 kg). Lovingly engineered with the famous Diono steel core and now rear facing for even longer. Expect 10 years of safety from just one car seat! DIONO Radian 3 RXT All in One Convertible Car Seat 2020 Features: Rear facing for longer Now up to 50lbs 22. 7 kg Improved Fabrics

The Diono radian® 3RXT is the original 3 across All-in-One convertible car seat, trusted by over a million parents to protect their child from birth to booster (5-120 lbs / 2.3-54 kg). Lovingly engineered with the famous Diono steel core and now rear-facing for even longer. Expect 10 years of safety from just one car seat!

DIONO Radian 3 RXT All-in-One Convertible Car Seat 2020 Features:

Rear-facing for longer

Now up to 50lbs / 22.7 kg

Improved Fabrics

New and updated fabrics that are easy to remove and wash.

Positioning Liner

New 2-in-1 infant positioning liner that is removable as child grows

Newborn Wedge

Integrated newborn travel high wedge creates near lie-flat travel position

 

Car Seat Installation:


Product Specs:

Rear-facing
5-50 lbs / 2.3-22.7 kg

Forward-facing
22-65 lbs / 10-29.5 kg

Booster mode
40-120 lbs / 18-54 kg

Seated torso height
7.5-16.5″ / 19-42 cm

Overall maximum height
up to 57″ / 144.8 cm

Weight
26.4 lbs / 11.97 kg

Care and Maintenance:

Cover machine washable at 86F/30C/Cold

DIONO Radian® 3RXT All-in-One Convertible Car Seat (2020 Edition)

Product Manual

Tips and Tricks:

Installation Tips

  • read the manual the comes with your car seat
  • read the vehicle manual
  • find a certified child passenger safety instructor or technician to help you and check your installations

 

Airline Use:

  • unfold the Diono car seat before boarding the plane and ask the flight attendant for seat belt extenders
  • make sure to install the car seat next to the window so passengers can get by in case of an emergency
  • make sure to take the slack out of the seat belt extender before connecting to the airplane seatbelt

Rear Facing Installation:

  • first secure the detachable base and slide in the locking mechanism
  • adjust the harness to be the proper height for rear facing
  • adjust the head support to fit your child properly

Folding and Unfolding:

  • to unfold: lay the car seat down on a stable flat surface and undo the velcro strap, tuck it in behind the fabric and open seat until clicked and locked.
  • to fold: remove the red velcro strap from behind the fabric and loosen up the harness as much as possible so they are at the top of the car seat. release the lever at the bottom of the car seat and push seat inward - secure the top with the red velcro strap.

 

Right For Newborn:

  • whether you buy an infant only car seat or an all-in-one convertible car seat, both car seats have to meet the same standard
  • seats like the Diono all-in-one convertible car seats come with an infant cushion insert to properly fit your child in the harness
  • all-in-one convertibles are more economical - they have a lot of room for growth for your growing child

FAQ's:

can the radian 3RXT fit 3-across in my car?

Most likely, yes, as long as you have 51” (129.6cm) in the back row from vehicle armrest to armrest. It may be necessary to install all three using the vehicle seat belt system.

can the harness straps be cleaned?

Yes, we recommend using a damp cloth with a solution of water and baking soda to wipe the straps clean. They cannot be saturated in any liquid, or they will need to be replaced. Replacement harness straps can be purchased on our website.

can I use the radian 3RXT from birth?

Yes, the weight limits on all our convertible car seats starts at 5lbs. The newborn must also meet a length requirement where the top of their shoulders reaches the lowest harness slot on the seat.

are the harness pads and buckle pads required on my seat?

Yes, they are required while your child is sitting in forward-facing. They are optional but recommended while sitting in rear-facing. The center buckle pad is required at all times.

See Entire Diono Collection

See Related Article: Best Car Seats of 2022

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 55641902760

Discover Niche Categories That Outsell diono vs maxi cosi

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 1693 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
E
Verified Purchase
Ebonie
Cuba, US
★★★★★ 5
👍🏻
My husband and I really like this set it works very well for both of us
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 23, 2025
M
Verified Purchase
Melissa D.
Omaha, US
★★★★★ 5
Bad poors
I have bad poor and this deep cleans it good and leaves my face refreshed and soft
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 20, 2025
E
EVP
San Leandro, US
★★★★★ 3
It’s so invisible
So basically, I am 15 I accidentally went to my school in these but during free period my friend told me I was so embarrassed because at that point all the moisture became out of it and it was very visible. It’s not a bad product just to make sure to take it off before school/work.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 28, 2025
G
Verified Purchase
Gregory L Stallworth
Dallas, US
★★★★★ 5
Skin care for Mature Skin
I have Mature skin. I have tried many products to no avail. These 3 Korean products did my skin wonders on day 1. My very favorite is the Oil Cleaner. 2 are the toner pads that have Collagen Peptides and Rice Water. They're thin and you really can place them on your face like a sheet mask. Amazing! 3 the Pore Minimizer Serum shrank the large pores on each side of my nose. It leaves my skin So Pretty that I don't wear makeup but on special occasions. The price is a steal also.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2024
R
Verified Purchase
Ruth Qiu
Louisville, US
★★★★★ 5
Amazing!!
Scent: Unscented, Size: 1.85 Fl Oz (Pack of 1), Scent: Unscented, Size: 1.85 Fl Oz (Pack of 1)
Amazing product! I have a hormone imbalance and am prone to ingrown hairs, pustules, and very coarse hair on my chin, jawline, and neck. Since using this product, my ingrown hairs have decreased significantly. It works well for me as someone with PCOS. It has a very comfortable scent, but it is very light. I don’t notice the smell after I rub it in. It really works and should consistently use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026

recommand products