| Diono Radian 3RXT | Graco 4Ever | |
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| BASICS | ||
| Carseat Name | Radian 3RXT | 4Ever |
| CarseatBlog Recommended Seat | Yes Recommended Carseats | Yes Recommended Carseats |
| IIHS Best Bet Booster | ||
| Available at | Buy at Amazon.com | Buy at Amazon.com |
| Available in Canada | ||
| RF Weight Limits | 5-45 lbs. | 4-40 lbs. |
| RF Height Limits | Up to 44 in. with at least 1.5 in. of shell above head | 1″ below top of headrest |
| FF Weight Limits | 20-65 lbs. | 20-65 lbs. |
| BPB Weight Limits | 50-120 lbs. | Highback: 30-100 lbs., 38-57 in. Backless: 40-120 lbs., 40-57 in. |
| Age Limits | n/a | |
| Type of Energy-Absorbing Foam | EPS foam | EPS foam |
| HARNESS INFO | ||
| Carseat Name | Radian 3RXT | 4Ever |
| No Re-thread Harness? | ||
| Number of harness height positions | 5 | 10 |
| Bottom/Lowest Harness Slot | 9 in. | 7 in. |
| 2nd Harness Slot or Highest Harness Slot | 10.5 in. | 18 in. |
| 3rd Harness Slot | 12 in. | |
| 4th Harness Slot | 15 in. | |
| 5th Harness Slot | 17 in. | |
| Highest BPB Shoulder Belt Guide | 18.75 in. | |
| Booster Modes | Highback | Highback/backless |
| Closest Buckle Slot | 3.5 in. | 5 in. |
| 2nd Buckle Slot | 5.5 in. | 7 in. |
| 3rd Buckle Slot | 7 in. | |
| Special Buckle Routing for Small Babies | ||
| SEAT INFO | ||
| Carseat Name | Radian 3RXT | 4Ever |
| Inside Shoulder Width | 14 in. | 13 in. |
| Inside Hip Width | 13 in. | |
| Inside Knee Width | 14.5 in. | |
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| Inside Seat Depth | 13 in. | 12 in. |
| Inside Seat Height | 28.5 in. | |
| External Widest Point | 17 in. | 19.5 in. |
| Seat Weight | 27 lbs. | 23 lbs. |
| INSTALL INFO | ||
| Carseat Name | Radian 3RXT | 4Ever |
| Recline Indicator Style | None | Bubble |
| Recline Indicator Location | On side of seat | |
| Number of RF Recline Positions | 1 | 3 |
| Number of FF Recline Positions | 2 | 3 |
| Has Anti-Rebound Bar or RF Tether? | ||
| RF Lockoff | ||
| FF Lockoff | ||
| Type of LATCH Connectors | SuperLATCH | Push-on |
| RF LATCH connectors/belt path are separate from RF seat belt/belt path | ||
| FF LATCH connectors/belt path are separate from FF seat belt/belt path | ||
| LATCH Weight Limit | 35 lbs. rear-facing, 40 lbs. forward-facing | 42 lbs. |
| Non-standard LATCH Policy (can “borrow” LATCH anchors) | Permitted if allowed by vehicle manufacturer and the bars are between 11″ and 14” apart | Permitted if allowed by vehicle manufacturer and the bars are at least 11″ apart |
| Inflatable Seat Belt Policy | Allowed | Not allowed in harness mode; allowed in booster mode. |
| MISC. | ||
| Carseat Name | Radian 3RXT | 4Ever |
| Cover Removal/Installation | Easy | Easy |
| Cover Washing Instructions | Hand wash and air dry | Machine wash and air dry |
| Expiration | 10 years | 10 years |
| Crash Guidelines | Replace after any crash | Replace after any crash |
| FAA Certified? | ||
| Comments | See our review for why CarseatBlog doesn’t recommend the RXT as a booster | |
| O Canada | 22-65 lbs. FF | |
| Manufacturing Country | China | China |
| CarseatBlog.com Review | Radian 3RXT Review | 4Ever Review |
| Available At | Buy at Amazon.com | Buy at Amazon.com |
| Price or MSRP | $299.99 | $299.00 |