Do you mean 2 in 1? Car Seat with stroller? Where by car seat can plug on the stroller and car.

Its okay, i bought both separately 

personally i went to the baby fair last time, tried a lot of brands.

The most sturdy & stable and good price is Looping, a french brand, the model i used is Squizz 2.
Then, the price is same like GB pockit.
Now i check is even cheaper. have promo, used to be 1.6K, now RM700?

when i try out, i make sure to push it around with the baby inside.
Good strollers, u can immediately feel the difference.
stable, run smooth. cant really explain here. i thought the rm200 stroller is smooth, yes it is, but when i tried the more expensive ones, i can fell the difference.

This in turn, will affect the baby inside the stroller.
The baby will be more comfortable in a smoother stroller. so can put to sleep easily, and if sleeping, can sleep well.
Also try the folding of the stroller. issit easy? how small issit when folded?
how can u carry it when folded?
The Squizz 2 is a one hand fold/unfold stroller and u can carry it like a luggage. it is also hand luggage size.

Please take note, Squizz 2 is the new model when i bought it then.
Must have new models now.
the link to a photo of it : https://www.instagram.com/p/B9GEV6IpMdl/

the link to a photo of me using it : https://www.instagram.com/p/Bhk9tk0BVEB/

this model Looping Squizz 2 ,  can attach newborn car seat carrier?

My sister bought a second hand stroller and it still works great for half the price. This is really an economical choice.