Cybex Eternis S vs Diono Radian 3R SafePlus
The Radian 3R SafePlus is 2.8 in narrower. The Radian 3R SafePlus lists for $39.96 less.
Only the differences are shown.
| Cybex Eternis S | Diono Radian 3R SafePlus | |
|---|---|---|
| Type | All-in-one | All-in-one |
| List price | $299.95 | $259.99Lowest price |
| Rear-facing weight | 4–50 lb | 4–50 lb |
| Rear-facing height | 17–48 in | 18–44 in |
| Forward-facing weight | 22–65 lb | 26.5–65 lb |
| Forward-facing height | 28–49 in | Not listed |
| Booster weight | 40–120 lb | 40–120 lb |
| Booster height | 44–57 in | Not listed |
| Seat weight | 26 lbLightest | 29.3 lb |
| Width | 19.8 in | 17 inNarrowest |
| Head rule | CHILD'S HEAD MUST BE 2.5 CM (1 IN) OR MORE BELOW THE TOP OF THE HEADREST OR SHELL, WHICHEVER IS TALLER. | Not listed |
| Newborn insert | Newborn Insert (REAR-FACING ONLY); no weight limit stated | Not listed |
| Installation | LATCH, seat belt | Not listed |
| Load leg | No | Not listed |
| Anti-rebound bar | Yes | Yes |
| Rotates | No | Not listed |
| Harness heights | 12 | Not listed |
| Recline positions | 6 | Not listed |
| Aircraft label | Certified for aircraft, per the maker | Not listed |
| Expires after | 10 years | 10 years |
Cybex Eternis S
A non-rotating Cybex all-in-one with a 12-position headrest that goes from rear-facing through high-back booster.
- Rear-facing to 50 lb
- Approved for aircraft use per Cybex
- In-seat recline plus 6 base recline positions
- 19.8 in wide
- 26 lb to carry
Diono Radian 3R SafePlus
All-in-one 3-across seat from Diono; the maker describes the SafePlus version as having 15 upgrades over the Radian 3R.
- Maker states it fits 3-across and includes a steel anti-rebound bar
- Maker lists a 12-position headrest
- Maker lists 'FAA approved for airline use'
Eternis S or Radian 3R SafePlus?
Answers come from each maker's published specs. Safety and health questions link to the agency or medical source.
Which is easier to travel with?
Eternis S: certified for planes, 26 lb. Radian 3R SafePlus: 29.3 lb.
What does the extra $39.96 for the Eternis S get you?
No extra listed feature from the ones we track (load leg, anti-rebound bar, rotation, flame retardants). Compare fabrics, ease of install, and fit in your car. Both meet the same federal crash standard.
Still wondering? Write to us at hello@cribpicks.com and we'll look it up.