Maxi-Cosi Tanza i-Size
From 100 cm, up to 150 cm (~3.5-12 years).
Pros / Cons
Pros
- Tanza i-Size makes a strong case if you want a compact booster that still comes from a known brand and adds genuinely useful travel-friendly folding.
- The optional ISOFIX plus seat-belt setup gives it a broader everyday fit than the most stripped-back belt-only boosters, while still keeping the seat relatively compact.
Cons
- This is still a pure 100-150 cm booster, so it only works once your child is truly past the harness stage.
- The compact design is part of the appeal, but it also means the seat feels less substantial than larger premium boosters built more for heavy daily use.
Product Facts
- From Age
- 3.5 years
- Weight
- 6.3 kg
- More Info
- Product page
- Price/Buy
- Check Price
Maxi-Cosi Tanza i-Size makes the most sense if you want a booster that stays compact enough for travel, second cars, or easier storage without dropping into generic no-name territory. The folding design is not a gimmick here. It is one of the main reasons the seat earns a shortlist place. If you want something easier to move and store than a bulkier everyday booster, but still want a known-brand safety story, Tanza has a very clear role.
The tradeoff is that the same compact design also keeps it lighter and a bit less substantial than larger premium boosters. It is still only a booster-stage seat, so it makes sense once your child is genuinely ready for 100-150 cm use and no longer needs a harnessed option. Bought at the right stage, it is a smart compact booster. Bought too early, it solves the wrong problem.