Depending on the childs height this corresponds to approximately four years of age. This roughly corresponds to an age of four years. However if you need three seats or two seats and a third person then it could be too wide to work well. When used rear facing make sure the recline ball is in the blue range. Children weighing more than 65 lbs or more than 49 should consider a booster seat that accommodates their weight height and age. The cybex sirona s is new to the car seat market with a very interesting feature it swivels for easy loading and unloading.
Rear facing lower anchor weight limit. When using the cybex sirona m2 i size the child can be transported in a rear facing position from birth until they reach 105 cm in height approx. 18 295 kg with a height between 17 49 431 1244 cm. The cybex sirona m2 i size can be used by children up to a maximum height of 105 cm maximum body weight. The sirona s is designed for children between 4 65 lbs. The new intelligent design means that even taller kids have plenty of leg room to sit comfortably.
Highest safety and comfort until your child reaches 105cm in height. It is also relatively wide at 196 inches which may not be an issue if you only need to fit one or two car seats in your back seat. The cybex weighs about 235 lbs depending on configuration which makes it heavier than average for the group. From what age and size can the sirona s i size be used. The sirona ss maximum harness height is 165 inches. The sirona s i size can be used for newborns and children from 45cm up to a height of 105 cm maximum body weight.