Both are booster car seats — here are their published manufacturer specs side by side.
This compares published manufacturer specs — not safety or fit advice. The seat's manual, your vehicle's manual, NHTSA's tools and a certified CPST are the fit-and-safety authority; always check them before installing.
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Weight ranges are the manufacturer's published limits across all modes.
How they differ
the Diono Solana 2 is listed narrow (roughly ≤17″) for fitting three across a back seat; the Chicco GoFit Plus isn't listed narrow
Published limits
Mode
Chicco GoFit Plus
Diono Solana 2
Booster (with back)
40–110 lb · 38–57 in · 4+ yrs
—
Booster (backless)
40–110 lb · 38–57 in · 4+ yrs
40–120 lb · 38–63 in
Useful life
—
8 yrs from purchase
Chicco GoFit Plus: The manual states one range for the seat (40–110 lb, 38–57″, 4+) across highback and backless use. Useful life is set by a “Do Not Use After” date on the label, not a printed number of years.
Diono Solana 2: Backless booster only (no high-back mode). No age requirement printed. Expired over 8 years from date of purchase (printed number, per manual). Weight/height range happens to match Diono's Monterey 4DXT (same booster weight class), sourced independently from Solana 2's own dedicated manual.
That is the record of the brand — not a verdict on these models. A recall names specific models and manufacture-date ranges, and a seat missing from the record is not "recall-free": check nhtsa.gov/recalls with the model and date of manufacture on your seat's label. Source: NHTSA, retrieved 2026-09-05.
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FAQ
What's the difference between the Chicco GoFit Plus and the Diono Solana 2? The Chicco GoFit Plus is lightweight/travel; the Diono Solana 2 is narrow for 3-across, lightweight/travel. Both are booster car seats.
Which fits three across, the Chicco GoFit Plus or the Diono Solana 2? The Diono Solana 2 is listed narrow (~≤17″) for 3-across; the Chicco GoFit Plus isn't. Three-across fit still depends on your exact vehicle — confirm before buying.
Which is right for my car and child, the Chicco GoFit Plus or the Diono Solana 2? That depends on your specific vehicle and child — this page compares published manufacturer specs only, not fit or safety. Check the seat manual, your vehicle manual, NHTSA's car-seat finder and ideally a certified CPST before deciding.
Citing these specs? Go ahead — published manufacturer data, last verified 2026-06-11. Copy a ready-made reference: