Lionelo Billy i-Size

Our score 9.33 / 10

Research by Peter Crona Last updated Method How we research

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From 76 cm, up to 150 cm (~15 months to 12 years).

Lionelo Billy i-Size

Pros

  • Covers the follow-on 76-150 cm window with ISOFIX, Top Tether, harness use for smaller riders, and vehicle-belt use later.

Cons

  • It skips the newborn stage and changes restraint mode as the child grows, so installation and belt-mode checks are part of the purchase.
Height Range
76-150 cm
Seat Use
Toddler, Booster
Install Method
ISOFIX or vehicle seat belt
Price/Buy
Check Price at Amazon

Lionelo Billy i-Size is a follow-on seat for after the infant carrier stage. It covers 76-150 cm with ISOFIX and Top Tether installation, an internal harness for smaller children, and vehicle-belt use for older children.

Its parent job is reducing the need to buy separate toddler and booster seats. The tradeoff is mode management: confirm the car has the right anchor setup, then check when the harness, headrest, and vehicle-belt routing need to change as the child grows.