Britax Römer Baby-Safe 3 i-Size Car Seat - From 0 to 15 months with lie-flat technology - Space Black
269,90€
Goes well with
✅ Rear-facing car seat from 0 to 15 months
✅ Compatible with Britax Römer strollers and other brands, such as Bugaboo, among others
✅ R129 (i-Size) approval
✅ Installation with seat belts or ISOFIX system
✅ "lie-flat" technology or reclined and ergonomic position
✅ Includes newborn insert
✅ Canopy with UPF 50+ protection to protect the baby from sun and wind
✅ Headrest and 5-point harness to secure your little one in the car seat
✅ Adjustable handle and/or arm to prevent the "infant carrier" from swaying
The Britax Römer Baby-Safe 3 i-Size Car Seat offers i-Size safety and a "lie-flat" system that keeps your baby's spine in a healthy and natural position, promoting improved breathing — ideal for transporting babies from birth up to 13 kg (or between 40 and 83 cm). Compatible with a 180° rotating Isofix base, sold separately, for greater comfort and ease of use.
Features of the Britax Römer Baby-Safe 3 i-Size Car Seat - Video Patented recline system- The BABY-SAFE 3 i-SIZE comes with the "lie-flat" system, patented by Britax Römer, to ensure maximum comfort and safety for your baby;
- For newborns, the seat adjusts to a reclined and ergonomic position, providing ideal rest;
- As your baby grows, the seat angle and space adjust, adapting to their height;
- Simply adjust the headrest and 5-point harness according to the baby's size and the seat adjusts automatically;
- The backrest keeps the head's center of gravity aligned with the spine, preventing forward rotation in case of impact.
Five-point harness
- The BABY-SAFE 3 i-SIZE comes with a five-point harness, offering your baby the best safety and comfort during the journey;
- In case of a collision, the impact force is evenly distributed among the five points: two on the shoulders, two on the hips, and one between the legs, to effectively protect your baby;
- The harness and headrest are super padded and can be easily adjusted with one hand, accompanying your baby's growth.
Installation in the car and on the stroller
- Easy installation in the car with the 3-point seat belt.
- For more practicality and safety, use the VARIO 5Z ISOFIX BASE or FLEX BASE ISENSE (sold separately here and here)
- The base rotates 180º towards the car door, making it easier to place the baby.
- 3 height-adjustable positions for your baby's optimal comfort.
- Compatible with Britax Römer strollers via Click & Go adapters.
- Also works with other brands such as Joolz (sold separately here), Bugaboo (sold separately here), using specific adapters (sold separately), among others.
How to install the Britax Römer Baby-Safe 3 i-Size Car Seat Car seat specifications Dimensions: 58 x 44 x 67 cm (height x width x depth) Weight: 4.6 kg Approval: ECE R129 (i-Size) Instruction manual
Britax-Romer_BABY-SAFE-3-i-SIZE_User-Guide_PDF_en
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What is R129 i-Size approval?
R129 i-size approval is more demanding than the previous R4404 approval and, as such, ends up being a safer option.
What is lie-flat technology?
It is a technology patented by Britax Römer that allows for a more comfortable and ergonomic position for newborns. This patented full recline mechanism allows the flatness of the lying position to be adjusted according to the child's height. The position automatically changes when adjusting the headrest, increasing space according to your child's development. The shoulder straps also automatically adjust when regulating the headrest.
Why order from Bonabebe with us ❤
- With us, you will have specialized human support before, during, and after purchase
- Child road safety techniques
- Safest products on the European market for babies
- Babywearing consultants
- Local business
- Women-owned
- LGBTQ+ friendly
| Approval | ECE R129 (i-Size) |
|---|---|
| Age | 0 to 15 months |
| Weight | from birth up to 13 kg |
| Height | between 40 and 83 cm |
| Direction | rear-facing |
| Installation | 3-point belt or ISOFIX system |
| Harness | 5-point |
| Height-adjustable positions | 3 |
| Dimensions | 58 x 44 x 67 cm (height x width x depth) |
| Seat weight | 4.6 kg |
- Removable newborn insert
Highlights and features of Britax Römer Baby-Safe 3 i-Size Car Seat - From 0 to 15 months with lie-flat technology - Space Black

Patented lie-flat recline system

i-Size safety with spine alignment

Newborn insert included

5-point harness

Versatile installation and rotating base
Why you'll love it
Certifications and approvals
Approval of the i-Level Pro Signature car seat included in the pack, with side-impact testing (applies to the car seat, not the pushchair).
Hood with UPF 50+ sun protection factor, with a retractable visor and a peek-a-boo window.


