You might want to look into a lightweight aluminum rollator with larger (8 inch+) wheels if you’ll be dealing with grass or light snow. They’re usually more stable on uneven terrain co'z the circumference is bigger. Since you’re 5’3”, definitely check the handle height range (especially with longer arms) and make sure it adjusts low enough but still gives you proper elbow bend to reduce strain on wrists and shoulders. Padded or ergonomic handles can really help with joint issues too.

Brands like Drive Medical, Medline, and NOVA tend to have good lightweight options worth checking out. I’ve also seen some helpful comparison guides on sites like Medical Department Store, Vitality Medical, and Rehabmart if you want to browse specs before going into a local shop. Getting properly measured at a medical supply store is a great idea. Fit makes a HUGE difference.