Lightweight travel system

I am trying to find a travel system (infant car seat and stroller) that is actually lightweight and easy to use. I am tiny and will have trouble trying to put anything heavy in the car by myself. I would like to keep it under $600. Also, we have uneven sidewalks here so I’d like it to be smooth.

I looked at the Chicco Bravo, Chicco Corso, and Evenflo Pivot Vizor in the store today. The Chiccos were definitely heavier than the Evenflo, but now I’m reading bad things about Evenflo and it had plastic tires. It had some nice features though. I didn’t try any Graco yet.

My friend has the Mockingbird stroller and lives it, but she says it’s a bit heavy and I’d have to buy a separate car yet. She lives far away so I can’t try it.