How well does macOS Catalina run on minimum requirements? - YouTube
Apple MacBook Pro with Retina display - Core i5 2.4 GHz - macOS Catalina 10.15 - 4 GB RAM - 128 GB flash storage - 13.3" IPS 2560 x 1600 (WQXGA) - Iris Graphics - Wi-Fi - kbd: US - Walmart.com
macOS 10.15 Catalina: The Ars Technica review | Ars Technica
Apple MacBook Air 13" Early 2015 i5 1.6GHz, 4GB RAM, 128GB SSD - Catalina | eBay
Just bought a 2015 13 inch MacBook Pro for $450! All it needed was a fresh copy of Catalina! This is my first Mac computer by the way. Bought it off eBay.
Big Sur vs Catalina: Detailed review and infographic