Hello. The Ender 5 Pro has a few improvements over the Ender 5. Specifically it has a better mainboard running silent TMC2208 drivers. It has a stronger all metal extruder frame. And the PTFE tube has been upgraded to a high quality Capricorn tube. The Pro will find you more joy. Silent printers save sanity. The Capricorn tubing will allow for more precise control over the extruder and lower retraction settings. And The price difference is less than you would pay to buy the parts and upgrade yourself. Bang for buck I would go with the Pro.