Cybex Eternis S vs Evenflo Symphony Extend Breeze 3-in-1

The Symphony Extend Breeze 3-in-1 is 1.3 in narrower. The Symphony Extend Breeze 3-in-1 lists for $19.96 less.

Only the differences are shown.

Cybex Eternis SEvenflo Symphony Extend Breeze 3-in-1
TypeAll-in-oneAll-in-one
List price$299.95$279.99Lowest price
Rear-facing weight4–50 lb4–50 lb
Rear-facing height17–48 in17–48 in
Forward-facing weight22–65 lb30–65 lb
Forward-facing height28–49 in35–49 in
Booster weight40–120 lb40–100 lb
Booster height44–57 in44–57 in
Seat weight26 lb17 lbLightest
Width19.8 in18.5 inNarrowest
Head ruleCHILD'S HEAD MUST BE 2.5 CM (1 IN) OR MORE BELOW THE TOP OF THE HEADREST OR SHELL, WHICHEVER IS TALLER.Rear-facing: Top of head at least 25 mm (1 in.) below the top of the child restraint headrest. Forward-facing: Top of child's ears are at or below the top of child restraint headrest.
Newborn insertNewborn Insert (REAR-FACING ONLY); no weight limit statedNot listed
InstallationLATCH, seat beltNot listed
Load legNoNot listed
Anti-rebound barYesNot listed
RotatesNoNo
Harness heights12Not listed
Recline positions66
Aircraft labelCertified for aircraft, per the makerNot listed
Expires after10 yearsNot listed

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

Evenflo Symphony Extend Breeze 3-in-1

A three-mode convertible with breathable FreeFlow fabric that rides rear-facing to 50 lb, then forward-facing with a harness and finally as a high-back booster.

  • Rear-facing limit goes to 50 lb
  • Breathable fabric panels
  • Six recline positions and a no-rethread headrest
  • Heavier at 17 lb to move between cars
Ask the meadow

Eternis S or Symphony Extend Breeze 3-in-1?

Answers come from each maker's published specs. Safety and health questions link to the agency or medical source.

Which one will my child use longer, the Eternis S or the Symphony Extend Breeze 3-in-1?

The Cybex Eternis S: it goes rear-facing, then forward-facing with a harness, then booster, up to 120 lb. The Symphony Extend Breeze 3-in-1 goes rear-facing, then forward-facing with a harness, then booster, up to 100 lb. The Eternis S expires after 10 years.

Which is easier to travel with?

Eternis S: certified for planes, 26 lb. Symphony Extend Breeze 3-in-1: 17 lb.

What does the extra $19.96 for the Eternis S get you?

Per the makers, the Eternis S adds an anti-rebound bar. Both meet the same federal crash standard.

Still wondering? Write to us at hello@cribpicks.com and we'll look it up.