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Car seats Group 1 (from 9 to 18 kg)

Group 1/ i-Size R129 car seats (76–105 cm / 9 months–4 years) are designed for children who have outgrown the infant carrier and can sit steadily but still need strong protection and a deeper seat. In this category you will find seats that provide safe travel in the transition between baby and older child, with a strong focus on comfort and side-impact protection.

The selection includes i-Size 76–105 cm seats, among them 360° rotating models for easier access, multiple recline positions for naps, adjustable headrests and 5-point internal harnesses. Some seats support extended rear-facing use, while others are primarily intended for forward-facing installation, but all offer a solid shell, good ergonomics and comfortable fabrics for everyday journeys.

At MagicOne you can choose Group 1/ i-Size seats from brands such as Cosatto, Maxi-Cosi, Thule and Kikkaboo, each with different styling, levels of side protection and extra features. The range spans from more compact seats suitable for smaller cars to more substantial models with richer padding, integrated ventilation systems and indicators that help you check the correct installation.

Use the filters by brand, height group (76–105 cm), installation method (ISOFIX, belt, combined), presence of a rotating mechanism and price range to find a seat that fits your car and travel habits. Consider whether you want to keep the option for rear-facing travel, your child’s actual height and weight, and how often you move the seat between different vehicles – this will help you choose the best balance between safety, comfort and everyday ease of use.

Brand: Maxi-Cosi
INSTRUCTIONS FOR USE Combining high-end design, 5 easy-to-adjust recline positions, Click & Go convenience and a compact size to fit most cars, the Maxi-Cosi Pearl car seat offers everything parents and children need to relax and enjoy your trip. Pearl has the highest rating in safety tests and is u..
265.90€ (520.06лв.)
Brand: Cosatto
Zoomi 3 i-size is here! In the latest cosatto designs and even stricter requirements during production! In addition - a top tether belt for mounting and a drink holder. A favorite extra from his older sibling the Ninja! Top advantages of Zoomi 3 i-size: Complies with the R129/03 standard, but is Tes..
189.00€ (369.65лв.)
Brand: Cosatto
Zoomi 3 i-size is here! In the latest cosatto designs and even stricter requirements during production! In addition - a top tether belt for mounting and a drink holder. A favorite extra from his older sibling the Ninja! Top advantages of Zoomi 3 i-size: Complies with the R129/03 standard, but is Tes..
189.00€ (369.65лв.)
Cosatto CT5828 Zoomi 3 I-Size SPOT ON car seat Cosatto CT5828 Zoomi 3 I-Size SPOT ON car seat
limited quantity
Brand: Cosatto
Zoomi 3 i-size is here! In the latest cosatto designs and even stricter requirements during production! In addition - a top tether belt for mounting and a drink holder. A favorite extra from his older sibling the Ninja! Top advantages of Zoomi 3 i-size: Complies with the R129/03 standard, but is Tes..
189.00€ (369.65лв.)
Brand: KinderKraft
You take care of your child every day, and in the car the I-GUARD PRO car seat supports you, acting as a reliable guardian. The I-Guard AirFlow PRO is the successor to the highly rated ADAC i-GUARD. Awarded 4 stars in independent tests for its advanced safety systems, it guarantees the highest level..
269.00€ (526.12лв.)
Brand: Thule
Elm car seat From 6 months to 4 years From 67 to 105 cm Up to 18 kg Compatible with base: Thule Alfi ISOFIX (sold separately) Personalized safety and comfort for your growing child Thule Elm features our exclusive Thule Impact Protection System, designed to provide comprehensive safety for your litt..
474.50€ (928.04лв.)
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Frequency Asked Questions (FAQs)

Who are Group 1/ i-Size R129 car seats (76–105 cm / 9 months–4 years) suitable for, and when should I move from an infant carrier to this group?
Group 1/ i-Size seats are suitable for children who can sit steadily on their own, meet the minimum weight requirement and have outgrown the infant carrier in height. The transition is usually around 9–12 months, when the baby’s head is close to the top edge of the carrier or the child reaches at least 76 cm, but you should always follow the specific guidelines of the seat manufacturer.
Can I keep my child rear-facing in a Group 1/ i-Size seat, and until when is this recommended?
Many Group 1/ i-Size seats support rear-facing travel up to 105 cm, which is around 4 years of age. It is recommended to keep your child rear-facing for as long as possible within this limit, because in a frontal impact the forces on the neck and spine are much lower than in a forward-facing position.
What is the difference between a rotating and a non-rotating Group 1/ i-Size seat, and which is better for everyday use?
Rotating seats can be turned towards the door, making it much easier to place and remove the child and fasten the harness, especially in taller cars and with heavier toddlers. Non-rotating models are usually lighter and more affordable, but require you to lean further into the car each time, so the decision depends on your budget and how frequently you use the seat.
How can I tell if a Group 1/ i-Size seat fits my child properly – what should I check during a fitting?
The harness should be at or slightly above shoulder level without cutting into the neck, and the headrest should give good side support around the head. Your child should not look cramped – in the upright position the knees should bend naturally, and in a reclined position the head should not flop forward, which indicates that the recline and seat depth are appropriate.
How should I correctly install a Group 1/ i-Size seat in my car – ISOFIX or seat belt, and what regular checks should I do?
If your car has ISOFIX anchor points and a suitable floor for a support leg, choose ISOFIX installation and follow the manual step by step until all indicators turn green (if the model has them). For belt installation, make sure the belt runs through all marked guides without twisting and that the seat does not move more than 2–3 cm when you pull it firmly at the fixing point; repeat this check regularly, especially after cleaning or moving the seat.