Comparison Britax Romer King II vs Britax Romer First Class Plus

The weight of the child for which the car seat is designed.

In total, there are 5 main weight groups: 0 (0 – 10 kg; a rather rare option nowadays), 0+ (0 – 13 kg), 1 (9 – 18 kg), 2 (15 – 25 kg), 3 (22 – 36 kg). However, many car seats are produced that belong to several groups at once: 0 +/1 (0 – 18 kg), 1/2 (9 – 25 kg), 2/3 (15 – 36 kg), 0 + / 1/2 (0 – 25 kg) and even 1/2/3 (9 – 36 kg) and 0+/1/2/3 (0 – 36 kg). Such versatility affects the price, sometimes quite noticeably. On the other hand, a seat that matches several groups at once remains relevant for a child longer, and it usually costs less than two (or even more) separate products, each for a different weight category.

Note also that the weight group is directly related to age; refer to "Age range" for details.

The results shown by the seat in crash tests according to the standards of ADAC — the General German Automobile Club, an authoritative European organization of motorists.

Car seats in such tests are evaluated in several categories, but in this point only one parameter is taken into account — the safety of the child, his/her protection in emergency situations. The results of such a test are indicated by the number of points; the fewer points in the end — the safer the product. It should be noted that the ADAC standards are much stricter than those by which the seat is evaluated during mandatory certification; tests are conducted with different directions of impacts (frontal and side), with dummies of different ages and so on. Therefore, the result of the ADAC test very reliably describes the real level of protection that the product provides in accidents.

According to this indicator, modern car seats can be divided into the following categories:

— very good (< 1.5);
— good (1.6 – 2.5);
— satisfactory (2.6 – 3.5);
— acceptable (3.6 – 4.5);
— unacceptable (more than 4.5).

The downside of a good value is usually a higher price; however, in an accident, that price may be a very small price to pay for the extra protection that can save your baby's life and health.

In c...onclusion, it should be noted that ADAC test methods are constantly being improved and tests are conducted every year. Therefore, when choosing a seat and comparing it with its counterparts, you should also pay attention to the year of manufacture; as a rule, newer products with the same number of points give a higher actual level of protection than older ones.

The age of the child for which the car seat is designed. Many models combine several age groups at once; such products, naturally, cost more, but remain relevant for the baby longer.

Note that this indicator is directly related to the weight group; Here are the main age ranges that are found nowadays, and the weight categories to which they correspond:

— 1 – 6 months (weight group 0); rare today.
— 1 – 12 months (weight group 0+); almost completely replaced the category "0".
— 8 – 48 months (weight group 1).
— 3 – 7 years (weight group 2).
— 6 – 12 years (weight group 3). Note that if only this weight category is indicated for the car seat, then it is a booster: a lining without a backrest, which is placed on the standard car seat and allows the grown-up child to use "adult" seat belts. If the note "6 — 12 years" is combined with another weight category - then we have a full-fledged car seat with a backrest.

In conclusion, it is worth saying that this characteristic is not strictly defined: children of the same age may differ in development and build. So, when choosing a seat, first of all, weight should be taken into account, and then age; and if the seat corresponds to the child's height and build, there is nothing wrong with the age discrepancy.

— Forward facing. Installing the car seat facing in the direction of the car. In this way, car seats of weight groups starting from 1 and above are installed.

— Rear facing. Install the seat facing against the direction of travel of the car. This is how seats of weight groups 0 and 0+ designed for very young babies are installed. These babies have cervical muscles not yet sufficiently developed to hold their head in a more or less severe frontal impact, so when the seat is positioned in the direction of travel, such an impact can lead to damage to the cervical spine, up to fatal. The backrest of the seat prevents critical displacement of the head when positioned against the driving direction.

— Sideways. An option used in some models for very young babies. These car seats are usually elongated carrycots that are difficult to fit into the car in any other way. Some models have a swivel/folding carrycot design, which allows to turn it into a car seat and turn it to be faced against the movement or in the direction of travel; nevertheless, in the form of a carrycot, such devices are still placed sideways, hence the name. Note that from a safety point of view, this option is generally less preferable than a rear-facing position, but such designs perform well in side impacts.

— Backrest tilt adjustment. The backrest tilt can be adjusted. This point is different for various weight groups. In groups 0+ and 1 not the backrest, but the whole seat tilts against the fixed base, and in groups 2 and 2/3 only the backrest tilts. The possibility of adjusting the backrest tilt is important if the child is in the car for a long time – by tilting the backrest you can let the child sleep or rest.

— Headrest height adjustment. According to safety requirements, the child's head should not be more than one third above the headrest, so it is necessary to adjust the headrest as the child grows.

— Harness height adjustment. The ability to adjust the height of car seat harnesses — such a need arises as the child grows.

— Backrest width adjustment. The ability to adjust the width of the backrest allows you to optimally adjust the car seat not only for constantly changing height, but also for the child's complexion.

— Horizontal position of a backrest. The backrest of the car seat is horizontal. The horizontal position is optimal for babies under the age of six months, since it avoids unnecessary stress on the spine, therefore group 0 car seats usually have this function.

— Removable backrest. It is possible to comp...letely remove the backrest of the car seat. This function expands the possibilities of the seat: it can be used both for its intended purpose, with a backrest, and as a booster (for more information on boosters, refer to "Weight group 3").

— Swivel system. The seat swivels relative to a fixed base. This makes it easier to drop off and pick up the child: during these operations, the seat can be turned to face the car door, and when driving, it can be positioned in or against the direction of travel.

— Polyester. Polyester is a synthetic fabric made from polyester fibers. The car seats with polyester upholstery have a pleasant to the touch surface. The material itself is not hygroscopic and is not subject to bacterial contamination. It is sufficiently resistant to mechanical stress and does not fade in the sun.

— Microfiber. Microfiber is made from polyamides. The main feature of microfiber is the unique structure of the fabric. This material consists of numerous micropores, which explains the good ventilation of microfiber. Microfiber-based coverings have a pleasant tactile sensation. The material belongs to the category of well ventilated and breathable. Despite its synthetic origin, microfiber absorbs moisture well, but is easy to wash and dries quickly.

— Alcantara. The car seat with alcantara has an attractive appearance and excellent performance. Alcantara is an artificial suede leather, it is a very durable and practical material. It is easy to clean, does not absorb moisture and does not require any special maintenance. Alcantara is made from a mix of polyester and polyurethane fibers, as a result of complex chemical processing. It is considered one of the most prestigious materials.

— Eco-leather. Car seats with eco-leather coverings are characterized by high practicality, reliability and durability. This material has hi...gh wear resistance and is absolutely hypoallergenic. An important difference between eco-leather and genuine one is the thickness of the material — eco-leather is noticeably thicker, but thanks to this it has higher and strength characteristics. However, it is impossible to distinguish a good expensive eco-leather from a natural one at a glance.

— Leather. Genuine leather upholstery is characteristic of premium car seats for kids. This material looks prestigious and solid, while possessing the highest durability and wear resistance. The natural origin of the leather excludes the appearance of the child any allergic reactions to the seat. Also genuine leather is valued for the fineness of dressing, provided that the material retains high durability characteristics. In addition, it is able to absorb moisture.

— Suede. The suede covering will make your child feel comfortable and cozy. Like genuine leather, suede has good durability. This material has waterproof properties and does not require any special maintenance. Suede is obtained by chemical processing of genuine leather with subsequent tanning.