Chicco
Chicco KeyFit 35 Infant Car Seat
$249.99Cheaper
Released 2020
Best Car Seats · head-to-head
Chicco KeyFit 35 Infant Car Seat vs Clek Foonf Slim Convertible Car Seat
A sourced, side-by-side comparison. Chicco KeyFit 35 Infant Car Seat is cheaper at $249.99. Every spec and price links to its source.
Clek
Clek Foonf Slim Convertible Car Seat
$559.99
Released 2012
Which is better: the Chicco KeyFit 35 Infant Car Seat or Clek Foonf Slim Convertible Car Seat?
The Chicco KeyFit 35 Infant Car Seat wins 2 of the 2 specs we compare head to head; the other wins 0. The Chicco KeyFit 35 Infant Car Seat is the cheaper at $249.99. The Chicco KeyFit 35 Infant Car Seat both leads on specs and costs less — the straightforward pick.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Chicco KeyFit 35 Infant Car Seat | Clek Foonf Slim Convertible Car Seat |
|---|---|---|
| US price | $249.99 | $559.99 MSRP per clekinc.com product page |
| Brand | Chicco | Clek |
| Released | 2020 | 2012 |
| Type | infant | convertible |
| Min weight (lb) | 4 | 14 |
| Max weight (lb) | 35 | 65 |
| Height limit (in) | 32 in | 49 in (FF); 43 in (RF) |
| Install | both | both |
| Steel frame | Yes | Yes |
| Expiration years | 6 | 9 |
| Release | 2020 | 2012 |
Sources — Chicco KeyFit 35 Infant Car Seat: chiccousa.com (verified 2026-06-19). Clek Foonf Slim Convertible Car Seat: clekinc.com (verified 2026-06-19).
What's the difference between the Chicco KeyFit 35 Infant Car Seat and Clek Foonf Slim Convertible Car Seat?
Where the two actually differ on the specs we track (5 of 7). Matching specs are omitted.
- Type: Chicco KeyFit 35 Infant Car Seat infant vs Clek Foonf Slim Convertible Car Seat convertible
- Min weight (lb): Chicco KeyFit 35 Infant Car Seat 4 vs Clek Foonf Slim Convertible Car Seat 14
- Max weight (lb): Chicco KeyFit 35 Infant Car Seat 35 vs Clek Foonf Slim Convertible Car Seat 65
- Height limit (in): Chicco KeyFit 35 Infant Car Seat 32 in vs Clek Foonf Slim Convertible Car Seat 49 in (FF); 43 in (RF)
- Expiration years: Chicco KeyFit 35 Infant Car Seat 6 vs Clek Foonf Slim Convertible Car Seat 9
What reviewers say
Sourced tester consensus for each — the "what people who used it think" layer, not just specs.
Chicco KeyFit 35 Infant Car Seat
One whitelisted hands-on tester (Reviewed/USA Today) reviewed this exact model, recommending the KeyFit 35 as an easy-to-install, comfortable, washable, budget-friendly infant seat while flagging it as bulky/awkward to carry and unattractive. No lab-measured data exists: Reviewed explicitly states it does not crash-test and relies on NHTSA safety ratings. (1 sourced review, 1 lab-tested.)
Praised: Easiest install of any seat tested; strap-based system clips into LATCH in under 5 minutes with a built-in level; Premium cushioning far superior to other seats tested; cozy headrest and soft fabric kept the baby comfortable; Easy to clean thanks to velcro-detachable machine-washable padding and mess-repelling fabric.
Flagged: Bulky and awkward to carry despite only modest weight; Unattractive orange/gray/black color scheme.
Clek Foonf Slim Convertible Car Seat
Only one whitelisted tester, the Good Housekeeping Institute, covers this Clek Foonf, and its notes are hands-on-qualitative (a lab staffer's long-term family use) rather than lab-measured. GHI names it Best Premium, praising tank-like steel-and-magnesium durability and a narrow build that can line up three-across, while flagging its 38-lb heft, rethread harness, and long-ride comfort. (1 sourced review.)
Praised: Tank-like steel-and-magnesium durability; one GH lab tester's child still used it at age 5; Narrow build fits many sedans and can line up three Foonfs across; Extended rear-facing to 50 lbs plus a car-seat recycling program.
Flagged: Heaviest seat on GH's list (38 lb, per spec); Rethread harness requires manual adjustment as the child grows; A GH tester's child found it uncomfortable on long car rides.