Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Sci-Fi Hero Free.
Sci-Fi Hero v1.0
The Sci-Fi hero is a character model suited for your mid-high quality projects
This comes with different LODs and texture resolution to adapt to your project settings
Details:
-LOD0: 18688 triangles including helmet and hair, 2048×2048 textures for the head, upper part and lower part, and a 512×512 texture for the hair
New Underwear mesh with 5022 triangles, and helmet visor with 448 tris
-LOD1: 8741 triangles including helmet and hair, 2048×2048 textures for the head, upper part and lower part, and a 512×512 texture for the hair
New Underwear mesh with 2967 triangles, and helmet visor with 338 tris
-LOD2: 5995 triangles including helmet and hair, 1024×1024 textures for the head, upper part and lower part, and a 256×256 texture for the hair(doesn’t include tongue and teeth)
New Underwear mesh with 2505 triangles, and helmet visor with 260 tris
Mecanim ready: Yes
Rigged: Yes
Animated: No