Skillnad på Mionix Naos 500 och 3200?

5000 modellen har laser istället för optisk LED, 5000 modellen har belysta DPI upp/ner knappar, och 5000 är ett "Bra val!" - PC för alla

The difference between a regular optical mouse and a laser mouse is the light used to track movement. A regular optical mouse uses an LED light in the optical engine, while a laser mouse uses a laser to track movement and thus more accurate.
The more dots per inch (dpi) a mouse can track, the more sensitive and accurate it is. A typical optical mouse tracks between 400dpi and 800dpi, while laser mice track more than 2,000dpi.
Besides their tracking speeds, laser mice work on nearly every surface, whereas optical mice may experience trouble tracking on black or shiny surfaces.

Det förklarar det ganska bra tbh.