Convertible car seats that also work as boosters
Which convertible car seats can later be used in booster mode for older children?
Diono Radian 3RX Latch: It supports rear-facing, forward-facing and booster use. Booster mode is listed for 40–120 lb (18–54 kg). Diono Radian 3R SafePlus: The manual covers all-in-one use from 4 to 120 lb. Booster mode is for children 40–120 lb and 40–57 in tall. DIONO Radian 3RXT: It is designed for rear-facing, forward-facing and booster use. Booster use is listed for children weighing 40–120 lb (18–54 kg). Diono Radian 3QXT+ Latch Convertible Car Seat: It supports rear-facing from 4–50 lb, forward-facing from 22–65 lb and high-back booster use from 40–120 lb. Baby Trend Journey 4-in-1 Convertible Car Seat: Booster use is for children at least 4 years old, weighing 40–100 lb and measuring 44–57 inches.
| Product | Why | Booster limits | Seat weight |
|---|---|---|---|
| 1. Diono Radian 3RX Latch sold by anbbaby.com | Booster mode is listed for 40–120 lb (18–54 kg). | Booster mode is listed for 40–120 lb (18–54 kg). guide | The store lists the seat at 28.1 lb (12.76 kg). guide |
| 2. Diono Radian 3R SafePlus sold by anbbaby.com | Booster mode is for children 40–120 lb and 40–57 in tall. | Booster mode is for children 40–120 lb and 40–57 in tall. manual | The seat weighs 29.3 lb. guide |
| 3. DIONO Radian 3RXT sold by anbbaby.com | Booster use is listed for children weighing 40–120 lb (18–54 kg). | Booster use is listed for children weighing 40–120 lb (18–54 kg). guide | The seat weighs 26.4 lb (11.97 kg). guide |
| 4. Diono Radian 3QXT+ Latch Convertible Car Seat sold by anbbaby.com | It supports rear-facing from 4–50 lb, forward-facing from 22–65 lb and high-back booster use from 40–120 lb. | It supports rear-facing from 4–50 lb, forward-facing from 22–65 lb and high-back booster use from 40–120 lb. guide | The seat weighs 34.2 lb. guide |
| 5. Baby Trend Journey 4-in-1 Convertible Car Seat sold by babytrend.com | Booster use is for children at least 4 years old, weighing 40–100 lb and measuring 44–57 inches. | Booster use is for children at least 4 years old, weighing 40–100 lb and measuring 44–57 inches. guide | The car seat weighs 16.24 lb. guide |
Also cited in the text
- Diono Radian 3R SafePlus, Modes and limits: The manual covers all-in-one use from 4 to 120 lb. manual
- Diono Radian 3RX Latch, Seat type: It supports rear-facing, forward-facing and booster use. guide
- DIONO Radian 3RXT, Modes: It is designed for rear-facing, forward-facing and booster use. guide
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Written 2026-10-22T23:25:04.200Z.
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