Hi there! We're here to help you decide between the Britax Highpoint and the Diono Radian 3R.
Our goal is to provide you with the information you need to feel confident that you're choosing the optimal car seat for your family's needs and budget. Let us know if you have any other questions!
At A Glance
Britax Highpoint | Diono Radian 3R | |
Type | High Back Booster |
Convertible Rear-Facing Forward-Facing High Back Booster |
Current price |
Currently unavailable
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Currently unavailable
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Rating | 4.70 | 4.70 |
Our Thoughts
When it comes to choosing the right car seat for your little ones, the Britax Highpoint and Diono Radian 3R both have a lot to offer.
The Britax Highpoint is part of Britax's reputation for quality and durability. It is a 2-stage belt-positioning booster seat that features multiple layers of side impact protection, adding to its high safety standards. Designed for convenience, it boasts a quick-remove cover, making it a breeze to clean as needed, especially considering how unpredictable kids can be! The Britax Highpoint supports a child's weight from 40 up to 120 pounds, proving it to be a reliable choice as your child continues to grow. While it is an investment, its focus on safety, convenience, and comfort gives you peace of mind knowing your child is well protected.
On the other hand, the Diono Radian 3R is a versatile, convertible car seat, which can transform from a rear-facing car seat to a forward-facing, and then into a high-back booster. Its robust steel frame ensures safety and durability, while its slim design allows it to fit three-across in most vehicles. One of its most notable features is the inclusion of memory foam padding for extra comfort which is perfect if your child enjoys taking naps during car rides. This car seat accommodates a child's weight from 5 to 100 pounds, offering a greater range compared to the Britax Highpoint, but a lower maximum weight limit. The Diono Radian 3R also stands out for its approved FAA modes for air travel, while the Britax Highpoint is not FAA approved.
In comparing the two, the Britax Highpoint stands out for its tremendous convenience and safety. However, the Diono Radian 3R offers more versatility and is a fitting long-term investment with its wider weight accommodation and approved modes for travel.
Taking everything into account, I would recommend the Diono Radian 3R if you're looking for a car seat that offers versatility, is travel-friendly, and that can comfortably accommodate your child through their different growth stages. Conversely, if your child is already transitioning out of a 5-point harness and you value convenience and safety, the Britax Highpoint would be a perfect option. Just remember, whichever car seat you choose, your child's safety is paramount. Do your research, consider your unique needs, and most importantly, make sure any car seat is properly installed before taking your child on the road.
Key Details
Highpoint | Radian 3R | |
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Brand | Britax | Diono |
Type | High Back Booster |
Convertible Rear-Facing Forward-Facing High Back Booster |
Weighted Rating | 4.70 | 4.70 |
1 yr Price Range | $144 - $199 | $155.39 - $199.98 |
Current price |
Currently unavailable
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Currently unavailable
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Value |
![]() Britax is a reputable brand that offers quality and durability, which can justify the investment. |
![]() Offers a long lifespan and versatile seating options, making it a cost-effective choice over time. |
Safety |
![]() With its high safety standards, Britax Highpoint provides peace of mind. |
![]() Features a steel frame for enhanced safety and reliability, scoring high in safety ratings. |
Features |
![]() It includes user-friendly components like color-coded belt paths and retractable cup holders. |
![]() Despite its minimalist design, it includes essential features like memory foam padding and a foldable design for travel (converts into a backpack!) |
Installation |
![]() It's straightforward to install, with clear instructions and easy-to-use connectors. |
![]() Installation experiences vary; some find it straightforward, while others face challenges, especially in smaller vehicles. |
Cleaning |
![]() The removable cover and dishwasher-safe cup holders are convenient for parents. |
![]() The seat cover is removable for cleaning, but some users report challenges in maintenance and durability. |
Size |
![]() While not the smallest booster, it's designed to fit well in most vehicles without taking up excessive space. |
![]() Its slim profile is a standout feature, allowing for three-across seating in most cars. |
Review | Click here | Click here |
Comparison of Specifications
While features and reviews provide a sense of real-world use, the specs offer quantifiable details on sizing, limitations, and more. Comparing key measurements and ranges side-by-side is crucial for ensuring you choose a seat properly fitted for your child and vehicle.
We've compiled the weight limits, height limits, dimensions, and other vital statistics for the Britax Highpoint and the Diono Radian 3R. This data will confirm whether each seat can accommodate your child's current size and projected growth. Specs like seat depth and width are also important for assessing fit with your car's backseat.
Review the following key measurements for both seats. Pay special attention to the height and weight limits to ensure your child falls within the safe ranges.
Height and Weight Limits
Rear-facing
Britax Highpoint | Diono Radian 3R | |
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Height Range | 0 - 44 inches | |
Weight Range | 5 - 40 pounds |
Forward-facing
Britax Highpoint | Diono Radian 3R | |
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Height Range | 0 - 57 inches | |
Weight Range | 20 - 65 pounds |
Booster
Britax Highpoint | Diono Radian 3R | |
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Height Range | 0 - 63 inches | 0 - 57 inches |
Weight Range | 40 - 120 pounds | 50 - 100 pounds |
Dimensions and Weight
Britax Highpoint | Diono Radian 3R | |
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Width | 16.0 inches | 17.0 inches |
Height | 21.0 inches | 28.5 inches |
Depth | 27.5 inches | 16.0 inches |
Weight | 12.0 pounds | 25.9 pounds |
Core Specifications
Britax Highpoint | Diono Radian 3R | |
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Model Year | 2018 | 2018 |
Made In | USA | China |
Frame Material | Reinforced Steel | Reinforced Steel |
Safety and Compliance
Britax Highpoint | Diono Radian 3R | |||||||||||||||||||||||||||||||||||||||||
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Federal Safety Standards | Meets all standards | Meets all standards | ||||||||||||||||||||||||||||||||||||||||
Configurations FAA-Approved for Airplanes |
High Back Booster Backless Booster |
Forward-Facing Rear-Facing High Back Booster Backless Booster |
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NHTSA Ease-of-Use Ratings |
Booster Mode
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Rear-Facing Mode
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Previous Recalls | This car seat has never been recalled. | This car seat has never been recalled. |
Features
Britax Highpoint | Diono Radian 3R | |
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Attachment Methods |
Seatbelt |
LATCH Seatbelt |
Harness Type | N/A | 5-Point |
Cup Holders | Has cup holders. | Has cup holders. |
Warranty and Durability
Britax Highpoint | Diono Radian 3R | |
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Manufacturers Warranty Length | 1 year | 1 year |
Lifespan | 10 Years | 10 Years |
Additional Links
See all Britax car seats | See all Diono car seats |
Full review of the Britax Highpoint Full review of the Diono Radian 3R |