So, what is low poly model? It’s a polygon mesh in 3d graphics, that consists of small number of polygons (triangles). Main difference between low poly and high poly models, low poly models usually are used in real-time rendering applications. For example, games and simulations. Term ”low poly” describes mesh construction and appearance. Polygon count is extremely important for optimization and performance, the lower poly number, the better.
Nowadays, low poly is a loose term. Gaming world has evolved so much, from PC to consoles, to hand-held devices. On each platform, low poly count is different and can be too much for other platforms. For example, low poly on PC will be almost high poly for device. Usually, low poly models are somewhere between 1k – 20k polys.