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Car seats Group 0/1/2 (from 0 to 25 kg)

Group 0/1/2/3 i-Size R129 car seats (40–125 cm / 0–12 years) offer an all-in-one solution from birth up to older childhood, so you do not need to change several separate seats over the years. In this category you will find combined i-Size models that cover a wide height range and allow extended rear-facing travel, followed by a safe transition to forward-facing with the car’s seat belt.

The range includes 40–125 cm seats with multiple configurations – 360° rotating models for easy access, versions with extra newborn inserts, adjustable headrests and several recline positions for sleeping. Some seats are installed using ISOFIX and a support leg, others combine ISOFIX and the vehicle belt, and at the later stages many can be used in high-back booster mode with the car’s belt only, while still providing side-impact protection and a comfortable seat for older children.

MagicOne offers popular lines from Cosatto, Kinderkraft, Kikkaboo, Cangaroo, Moni, Maxi-Cosi, Mountain Buggy, BabyAuto, Lorelli Classic and Lorelli Premium, each with different designs, safety features and comfort levels. You can choose between more affordable everyday models and premium solutions with richer padding, rotating mechanisms, additional side protectors and extended adjustability to follow your child’s growth.

Use the filters by brand, height range (40–125 cm), installation method (ISOFIX, belt, combined), presence of 360° rotation and price range to find the best match for your car and travel habits. Consider how intensively you will use the seat, whether you plan to rely on it for several growth stages and whether your vehicle has ISOFIX anchor points – this will help you decide between a lighter combination seat and a more robust rotating i-Size model that can accompany your child from baby to school age.

Brand: Chipolino
Guarantee maximum safety and comfort for your child from day one up to the age of 12 with the multifunctional PREMIUM child car seat. Thanks to the ISOFIX attachment system and the 360° rotating seat, everyday trips become easier, safer and more comfortable for both you and your child. Main features..
191.70€ (374.93лв.)
Brand: Chipolino
Guarantee maximum safety and comfort for your child from day one up to the age of 12 with the multifunctional PREMIUM child car seat. Thanks to the ISOFIX attachment system and the 360° rotating seat, everyday trips become easier, safer and more comfortable for both you and your child. Main features..
191.70€ (374.93лв.)
Brand: Chipolino
Guarantee maximum safety and comfort for your child from day one up to the age of 12 with the multifunctional PREMIUM child car seat. Thanks to the ISOFIX attachment system and the 360° rotating seat, everyday trips become easier, safer and more comfortable for both you and your child. Main features..
191.70€ (374.93лв.)
Brand: Chipolino
Guarantee maximum safety and comfort for your child from day one up to the age of 12 with the multifunctional PREMIUM child car seat. Thanks to the ISOFIX attachment system and the 360° rotating seat, everyday trips become easier, safer and more comfortable for both you and your child. Main features..
191.70€ (374.93лв.)
Avionaut MaxSpace Smart car seat Black Avionaut MaxSpace Smart car seat Black
-8 %
Brand: Avionaut
Space and comfort for a growing child - Avionaut MaxSpace The MaxSpace Smart car seat is synonymous with optimal spinal support, ensuring that your child maintains proper posture on every journey. With its ergonomically focused design, it also ensures comfort and health at every stage of the child&#..
229.00€ (447.89лв.) 249.00€ (487.00лв.)
Avionaut Stardust Airflow car seat AV-390 BLACK.03 Avionaut Stardust Airflow car seat AV-390 BLACK.03
-13 %
Brand: Avionaut
Avionaut STARDUST is the newest addition to the Avionaut range of chairs. It is not just a car seat, it is designed to be with your child every step of the way, from birth. From the first trip home, STARDUST is a reliable companion for your little treasure. The seat is suitable for children from 61 ..
399.00€ (780.38лв.) 459.00€ (897.73лв.)
Avionaut Stardust Airflow car seat AV-390 GRAY.01 Avionaut Stardust Airflow car seat AV-390 GRAY.01
-13 %
Brand: Avionaut
Avionaut STARDUST is the newest addition to the Avionaut range of chairs. It is not just a car seat, it is designed to be with your child every step of the way, from birth. From the first trip home, STARDUST is a reliable companion for your little treasure. The seat is suitable for children from 61 ..
399.00€ (780.38лв.) 459.00€ (897.73лв.)
Avionaut Stardust Airflow car seat AV-390 MINT.06 Avionaut Stardust Airflow car seat AV-390 MINT.06
-13 %
Brand: Avionaut
Avionaut STARDUST is the newest addition to the Avionaut range of chairs. It is not just a car seat, it is designed to be with your child every step of the way, from birth. From the first trip home, STARDUST is a reliable companion for your little treasure. The seat is suitable for children from 61 ..
399.00€ (780.38лв.) 459.00€ (897.73лв.)
Brand: Chipolino
Give your baby the perfect ride – whatever the weather. The premium CLIMA AIR baby car seat is equipped with innovative heating and cooling technology that maintains the optimal temperature for your child both in winter and on hot summer days. Peace of mind, comfort and safety – on every trip. Main ..
215.60€ (421.68лв.)
Brand: Chipolino
Give your baby the perfect ride – whatever the weather. The premium CLIMA AIR baby car seat is equipped with innovative heating and cooling technology that maintains the optimal temperature for your child both in winter and on hot summer days. Peace of mind, comfort and safety – on every trip. Main ..
215.60€ (421.68лв.)
Brand: Chipolino
Give your baby the perfect ride – whatever the weather. The premium CLIMA AIR baby car seat is equipped with innovative heating and cooling technology that maintains the optimal temperature for your child both in winter and on hot summer days. Peace of mind, comfort and safety – on every trip. Main ..
215.60€ (421.68лв.)
Brand: Chipolino
Give your baby the perfect ride – whatever the weather. The premium CLIMA AIR baby car seat is equipped with innovative heating and cooling technology that maintains the optimal temperature for your child both in winter and on hot summer days. Peace of mind, comfort and safety – on every trip. Main ..
215.60€ (421.68лв.)
Car seat 360 I-size 40-150 HYPNOTIC anthracite Car seat 360 I-size 40-150 HYPNOTIC anthracite
limited quantity
Brand: Chipolino
i-Size, or R129, is a car seat legislation that uses new crash tests, including a new side impact test method. Instead of using a child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are considered the saf..
163.00€ (318.80лв.)
Brand: Chipolino
i-Size, or R129, is a car seat legislation that uses new crash tests, including a new side impact test method. Instead of using a child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are considered the saf..
163.00€ (318.80лв.)
Brand: Chipolino
i-Size, or R129, is a car seat legislation that uses new crash tests, including a new side impact test method. Instead of using a child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are considered the saf..
163.00€ (318.80лв.)
Brand: Chipolino
i-Size, or R129, is a car seat legislation that uses new crash tests, including a new side impact test method. Instead of using a child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are considered the saf..
163.00€ (318.80лв.)
Brand: Chipolino
i-Size, or R129, is a car seat legislation that uses new crash tests, including a new side impact test method. Instead of using a child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are considered the saf..
163.00€ (318.80лв.)
Brand: Chipolino
i-Size, or R129, is a car seat legislation that uses new crash tests, including a new side impact test method. Instead of using a child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are considered the saf..
163.00€ (318.80лв.)
Brand: Chipolino
i-Size, or the R129 directive, is car seat legislation that uses new crash tests, including a new side impact testing method. Instead of using the child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are c..
186.90€ (365.54лв.)
Brand: Chipolino
i-Size, or the R129 directive, is car seat legislation that uses new crash tests, including a new side impact testing method. Instead of using the child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are c..
186.90€ (365.54лв.)
Brand: Chipolino
i-Size, or the R129 directive, is car seat legislation that uses new crash tests, including a new side impact testing method. Instead of using the child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are c..
186.90€ (365.54лв.)
Brand: Chipolino
i-Size, or the R129 directive, is car seat legislation that uses new crash tests, including a new side impact testing method. Instead of using the child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are c..
186.90€ (365.54лв.)
Brand: Chipolino
i-Size, or R129, is a car seat legislation that uses new crash tests, including a new side impact test method. Instead of using a child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are considered the saf..
115.00€ (224.92лв.)
Brand: Chipolino
i-Size, or R129, is a car seat legislation that uses new crash tests, including a new side impact test method. Instead of using a child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are considered the saf..
115.00€ (224.92лв.)
Brand: Chipolino
i-Size, or R129, is a car seat legislation that uses new crash tests, including a new side impact test method. Instead of using a child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are considered the saf..
115.00€ (224.92лв.)
Brand: Chipolino
i-Size, or R129, is a car seat legislation that uses new crash tests, including a new side impact test method. Instead of using a child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are considered the saf..
115.00€ (224.92лв.)
Brand: Chipolino
i-Size, or R129, is a car seat legislation that uses new crash tests, including a new side impact test method. Instead of using a child's weight to determine the appropriate seat, i-Size seats are based on the child's height to determine the correct seat size. i-Size car seats are considered the saf..
115.00€ (224.92лв.)
Brand: Kikkaboo
 • i-SIZE (40-150 cm); • Suitable for use in the opposite direction of traffic from 40 to 105 cm; • Suitable for use in the direction of movement from 76 to 150 cm; • Adjustable seat tilt in 5 positions in the direction of movement and 3 positions in the opposite direction of movement; • 360 degree ..
163.10€ (319.00лв.)
Brand: Kikkaboo
 • i-SIZE (40-150 cm); • Suitable for use in the opposite direction of traffic from 40 to 105 cm; • Suitable for use in the direction of movement from 76 to 150 cm; • Adjustable seat tilt in 5 positions in the direction of movement and 3 positions in the opposite direction of movement; • 360 degree ..
163.10€ (319.00лв.)
Brand: Kikkaboo
 • i-SIZE (40-150 cm); • Suitable for use in the opposite direction of traffic from 40 to 105 cm; • Suitable for use in the direction of travel from 76 to 150 cm; • Adjustable seat tilt in 5 positions in the direction of travel and in the direction of travel; • 360 degree seat rotation; • Top tether..
149.90€ (293.18лв.)
Brand: Kikkaboo
 • i-SIZE (40-150 cm); • Suitable for use in the opposite direction of traffic from 40 to 105 cm; • Suitable for use in the direction of travel from 76 to 150 cm; • Adjustable seat tilt in 5 positions in the direction of travel and in the direction of travel; • 360 degree seat rotation; • Top tether..
149.90€ (293.18лв.)
Brand: Kikkaboo
 • i-SIZE (40-150 cm); • The seat is suitable for use in the rear-facing position, from 40 to 105 cm; • The seat can be used in the direction of travel from 76 to 150 cm; • Adjustable backrest levels in 4 positions; • 360 degree seat rotation; • ISOFIX system for additional security and easy attachm..
214.20€ (418.94лв.)
Brand: Kikkaboo
 • i-SIZE (40-150 cm); • The seat is suitable for use in the rear-facing position, from 40 to 105 cm; • The seat can be used in the direction of travel from 76 to 150 cm; • Adjustable backrest levels in 4 positions; • 360 degree seat rotation; • ISOFIX system for additional security and easy attachm..
214.20€ (418.94лв.)
Brand: Kikkaboo
 • i-SIZE (40-150 cm) • Suitable for use in the opposite direction of traffic from 40 to 105 cm; • Suitable for use in the direction of travel from 76 to 150 cm; • Adjustable seat tilt in 4 positions in the direction of travel and in the direction of travel; • 360 degree seat rotation; • ISOFIX syst..
168.20€ (328.97лв.)
Brand: Kikkaboo
 • i-SIZE (40-150 cm) • Suitable for use in the opposite direction of traffic from 40 to 105 cm; • Suitable for use in the direction of travel from 76 to 150 cm; • Adjustable seat tilt in 4 positions in the direction of travel and in the direction of travel; • 360 degree seat rotation; • ISOFIX syst..
168.20€ (328.97лв.)
Brand: Chipolino
MONDIAL 40–150 cm i-Size child car seat - safety, comfort and style that grow with your child. MONDIAL 40–150 cm is designed to accompany your child from birth to the end of childhood – with impeccable safety, comfort and style. ✅ Suitable for the child's growth (40–150 cm) It meets the latest UN R1..
117.20€ (229.22лв.)
Brand: Chipolino
MONDIAL 40–150 cm i-Size child car seat - safety, comfort and style that grow with your child. MONDIAL 40–150 cm is designed to accompany your child from birth to the end of childhood – with impeccable safety, comfort and style. ✅ Suitable for the child's growth (40–150 cm) It meets the latest UN R1..
117.20€ (229.22лв.)
Brand: Chipolino
MONDIAL 40–150 cm i-Size child car seat - safety, comfort and style that grow with your child. MONDIAL 40–150 cm is designed to accompany your child from birth to the end of childhood – with impeccable safety, comfort and style. ✅ Suitable for the child's growth (40–150 cm) It meets the latest UN R1..
117.20€ (229.22лв.)
Brand: Chipolino
MONDIAL 40–150 cm i-Size child car seat - safety, comfort and style that grow with your child. MONDIAL 40–150 cm is designed to accompany your child from birth to the end of childhood – with impeccable safety, comfort and style. ✅ Suitable for the child's growth (40–150 cm) It meets the latest UN R1..
117.20€ (229.22лв.)
Brand: Chipolino
MONDIAL 40–150 cm i-Size child car seat - safety, comfort and style that grow with your child. MONDIAL 40–150 cm is designed to accompany your child from birth to the end of childhood – with impeccable safety, comfort and style. ✅ Suitable for the child's growth (40–150 cm) It meets the latest UN R1..
117.20€ (229.22лв.)
Brand: Chipolino
MONDIAL 40–150 cm i-Size child car seat - safety, comfort and style that grow with your child. MONDIAL 40–150 cm is designed to accompany your child from birth to the end of childhood – with impeccable safety, comfort and style. ✅ Suitable for the child's growth (40–150 cm) It meets the latest UN R1..
117.20€ (229.22лв.)
Brand: Moni
The Aventura car seat by Moni is designed to provide a high level of safety, comfort and adaptability on every journey. Approved according to the R129/i-Size standard, it is suitable for children from 40 to 150 cm tall and offers flexible installation options according to the age and development of ..
99.00€ (193.63лв.)
Brand: Moni
Competition by Moni is an innovative car seat designed to provide the highest level of protection and comfort for your child – from the first months to the end of the period in which he uses the seat. The model is approved according to the latest European standard R129/i-Size and has two separate ce..
99.00€ (193.63лв.)
Brand: Moni
Competition by Moni is an innovative car seat designed to provide the highest level of protection and comfort for your child – from the first months to the end of the period in which he uses the seat. The model is approved according to the latest European standard R129/i-Size and has two separate ce..
99.00€ (193.63лв.)
Brand: Moni
Competition by Moni is an innovative car seat designed to provide the highest level of protection and comfort for your child – from the first months to the end of the period in which he uses the seat. The model is approved according to the latest European standard R129/i-Size and has two separate ce..
99.00€ (193.63лв.)
Brand: Moni
Competition by Moni is an innovative car seat designed to provide the highest level of protection and comfort for your child – from the first months to the end of the period in which he uses the seat. The model is approved according to the latest European standard R129/i-Size and has two separate ce..
99.00€ (193.63лв.)
Car seat Fortis I-Size Emerald 15-36kg Caretero Car seat Fortis I-Size Emerald 15-36kg Caretero
-16 %
Brand: Caretero
Fortis is a car seat for children with a height of 40 cm to 150 cm , which will provide comfort from the first moments of the child's life. Fortis meets i-Size approval standards, ensuring travel with the highest safety standards. Equipped with a stabilizing leg, it can be installed in a car using I..
237.01€ (463.56лв.) 280.50€ (548.61лв.)
Car seat Fortis I-Size Gray 15-36kg Caretero Car seat Fortis I-Size Gray 15-36kg Caretero
-16 %
Brand: Caretero
Fortis is a car seat for children with a height of 40 cm to 150 cm , which will provide comfort from the first moments of the child's life. Fortis meets i-Size approval standards, ensuring travel with the highest safety standards. Equipped with a stabilizing leg, it can be installed in a car using I..
237.01€ (463.56лв.) 280.50€ (548.61лв.)
Brand: Cangaroo
Car seat Gravity I-Size 40-150 cm is with Isofix system + Top Tether, meets standard R129-03. Suitable from 0m+ to 150cm or approx up to 12 years. All the parts of the chair are precisely and precisely made by injection molding process, which makes it much safer and stronger. 5 point safety belt wit..
169.00€ (330.54лв.)
Brand: Cangaroo
Car seat Gravity I-Size 40-150 cm is with Isofix system + Top Tether, meets standard R129-03. Suitable from 0m+ to 150cm or approx up to 12 years. All the parts of the chair are precisely and precisely made by injection molding process, which makes it much safer and stronger. 5 point safety belt wit..
169.00€ (330.54лв.)
Brand: Cangaroo
Car seat Gravity I-Size 40-150 cm is with Isofix system + Top Tether, meets standard R129-03. Suitable from 0m+ to 150cm or approx up to 12 years. All parts of the chair are precisely and precisely made by a pressure-molding process, which makes it much safer and stronger. 5 point safety belt with s..
169.00€ (330.54лв.)
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Frequency Asked Questions (FAQs)

What is a Group 0/1/2/3 i-Size R129 car seat (40–125 cm / 0–12 years) and who is this all-in-one option suitable for?
A 0/1/2/3 i-Size seat covers several consecutive stages – from newborn to older child – by adjusting inserts, recline positions and headrest height. It is suitable for families who prefer one main seat for a longer period and do not want or cannot invest in several separate models over the years.
Up to what age and height can my child travel rear-facing in a 0/1/2/3 i-Size seat and when is it safe to turn it forward-facing?
Most combined 0/1/2/3 i-Size seats allow rear-facing travel up to at least 105 cm, which usually corresponds to around 4 years of age. After that, following the manufacturer’s instructions and if your child has reached the required height and weight, the seat can be used forward-facing – first with the internal harness and later as a high-back booster with the car’s seat belt.
What is the difference between a 0/1/2/3 i-Size seat and separate group seats (0+, 1, 2/3) in terms of safety and comfort?
Separate group seats are usually more finely tuned to each stage – infant carriers are lighter and easier to carry, while seats for older children are wider and shaped to their posture. Multi-group 0/1/2/3 seats compensate with a wide adjustment range and removable inserts, but they tend to be bulkier and heavier, so it is important to check how a specific model fits both your car and your child at each stage.
How do I choose the right installation method for a 0/1/2/3 i-Size seat – ISOFIX, seat belt or a combination of both?
If your car has ISOFIX anchor points and a suitable floor for a support leg, ISOFIX installation is usually the quickest and least error-prone option. A combined ISOFIX plus belt installation or belt-only mode works when you use the seat in more than one car or do not have ISOFIX, but it requires careful routing of the belt according to the diagram and regular checks for any movement.
How can I tell that my child has outgrown a specific configuration of the 0/1/2/3 i-Size seat and we should move to the next mode (for example from the internal harness to the car’s seat belt)?
Watch your child’s shoulder height in relation to the harness slots and the maximum headrest position – if the shoulders sit above the top slots or the head goes beyond the protective area, the current mode has been outgrown. The manufacturer normally specifies a particular height and/or weight at which the internal harness should no longer be used and the seat should be switched to high-back booster mode, where the car’s belt routes correctly through the marked guides.