Clek Fllo vs Cybex Sirona S

The Fllo is 2.1 in narrower. The Fllo lists for $49.96 less.

Only the differences are shown.

Clek FlloCybex Sirona S
TypeConvertibleConvertible
List price$499.99Lowest price$549.95
Rear-facing weight14–50 lb4–50 lb
Rear-facing heightUp to 43 inUp to 49 in
Forward-facing weight26.5–65 lb22–65 lb
Forward-facing heightUp to 49 inUp to 49 in
Seat weight25 lbLightest30.4 lb
Width16.9 inNarrowest19 in
Head ruleNot listedRear-facing: CHILD’S HEAD MUST BE 2.5 CM (1 IN) OR MORE BELOW THE TOP OF THE HEADREST OR SHELL, WHICHEVER IS HIGHER. Forward-facing: Top of ears below the top of the Headrest.
Newborn insertInfant-thingy (sold separately): 'When using with infant-thingy (sold separately), you can accommodate a child that's 5 lb and 19 in.' Rear-facing minimum age without it: 'Able to sit upright alone'.Newborn Insert and Newborn Headpad Insert ('To ensure a better fit for smaller infants, the Newborn Insert may be needed'); manual gives no weight limit for the insert
InstallationLATCH, seat beltseat belt
Load legNoYes
Anti-rebound barYesYes
RotatesNoYes
Harness heights612
Recline positions112
Aircraft labelNot listedNot certified for aircraft
No added flame retardantsYesNot listed
Expires after9 years10 years

Clek Fllo

A narrow, steel-built convertible with a flexible LATCH and a steel anti-rebound bar. Rear-facing starts at 14 lb unless you add Clek's separate infant insert.

  • Narrow seating width of 16.9 inches
  • 50 lb rear-facing limit
  • Flame-retardant and PFAS-free fabrics, aircraft approved
  • Not for newborns without the sold-separately infant insert
  • List price $499.99

Cybex Sirona S

A rotating Cybex convertible with a height-adjustable load leg, anti-rebound design and a one-time belt installation for both directions.

  • 360-degree swivel
  • Load leg and anti-rebound design
  • Rear-facing to 50 lb
  • Heavy at 30.4 lb
  • List price $549.95
Ask the meadow

Fllo or Sirona S?

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?

Fllo: 25 lb. Sirona S: 30.4 lb. Neither lists aircraft certification.

What does the extra $49.96 for the Sirona S get you?

Per the makers, the Sirona S adds a load leg, rotation. Both meet the same federal crash standard.

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